Let me repost my last post with emphasis for the people who never learnt to read in school...or were purposefully ignoring the key words that were in my post.
These bids take a lot of time for the 'lesser developed states' of Europe. For instance, Turkey began its bid back in the late 1980s, and might have to wait until the end of this decade before it can become a full member. That's around 40 years from bid, to member.
Expect this to be the same for any hopefully new state. However there are a small number of states that might get fast tracked EU membership should they ever want it; Norway, Iceland, Switzerland and the ex-Yugoslav states that do not yet meet criteria. Others even like Israel would have serious issues with joining the EU because of their histories, and the fact the EU doesn't want to open its borders to anti-arab sentiment via backing Israel with favouritism.
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On a more positive note, what would Morocco gain from being part of the EU, and what would the EU gain from Morocco? Well the answer is not much, but also a great deal.
Like Turkey, Morocco is only 'just' a European state, yet if either joins the EU its a very big message for how Europe sees itself, as a supranational entity that is willing to incorporate any state that matches its ideals.
With that basis, the EU becomes as a whole a lot more desirable to many of the ENP nations. In particular Belarus, Ukraine and Russia. While Russia will no doubt want to maintain her sphere of influence, an intergrationist EU is an EU that Russia would want to be part of rather than oppose. This is because bi-lateral Euro-Russian trade is likely to be much more profitable than Sino-Russian trade, or Indo-Russian trade as the big economic centres of the world grow. This is because China sees more of its markets for resources in the pacific region, or from home grown industries, which under state capitalism can be more effectively monopolised, rather than being bought from abroad. However it is likely in the future 'gas and oil economic wars' Asia will be another big player.
There are other reasons due to foreign investment, the EU as a whole is very strong on investing into her neighbouring countries, and hence any country on the Euro-perifery is going to see that, they are also going to see the writing on the wall in an unstable century and note that its better to be 'inside or aligned' then it is to be fully independent.
For nations like Morocco if it gains entry to the EU, it then becomes the domino for Algeria, hence Morroco-Algeria trade booms, and so on. However Morocco may loose out in the currency and competitive trade, if she joins, then free trade agreements may make Moroccan agriculture less competitive, especially if it is forced to adopt the Euro. Indeed I think it is unlikely that any new states without the Euro as currency would adopt it, however far from being a 'weak currency' it is a very strong one! Indeed its 'strength' has been the very reason that weaker economic nations like Greece have suffered.
Hence for ENP states it is unlikely they would ever adopt the Euro, and hence the Eurozone would have to become a multi-currency zone more so than it already is. However if being in the EU allows it to peg its currency via member vote, then that opens up Morocco and any other 'weaker state' to massive investment and development since it allows devaluing the currency, but also with the relaxation of trade tariffs and barriers, which makes export/investment economics very strong.
An intergrationalist EU also quickly becomes 'the dominant economic centre on the planet' with a growing GDP from the collective nations. Also with states like Turkey and/or Russia aligned with it, the EU also becomes the defacto premier military power in the world, and not only that, geopolitically nations will be allowed to exercise their own foreign policy from within it (for the most part).
However this assumes that the Paris-Berlin axis is fundamentally weakened and the Paris-London-Berlin triangle becomes dominant.
Indeed an EU with Great Britain is an EU that is far more inviting to ENP states than one without. Over the last 60 years, the British Commonwealth of Nations has come to account for around 25% of global trade, while this might appear small compared to the ~30% of global trade that is Greater Europe, together with Britain and the EU they account for just under half (~45%) of global trade and not only that the ideals of the Commonwealth lead it to having the greatest proportion of liberal market economies with strong existing political, economic and cultural ties.
EU nations can 'piggy back' off Britain in a way that allows them better access to the Commonwealth via Britain, hence why London is such a global city. The ties don't however go as strong back the other-way.
In this aspect Britain could in principle loose the EU and be 'ok', but for the EU the loss of Britain would be the European Projects downfall. This is because with the German economy dominating the Eurozone, it becomes a lot harder for the other member states to influence and check German wishes without doing damage to themselves. Hence it becomes an unhappy marriage.
Furthermore, many European states look to British 'scepticism' for supporting their own 'scepticism', hence their position becomes eroded, and being the weaker states will be forced either into a defacto 'puppet arrangement' with Brussels, or will vote with their feet and leave unilaterally, whatever they previously signed. It would only take one nation to do this, most likely one of the Scandinavian ones and within a year or so the whole of the EU might fall apart.
For all German and French posturing, they know this to some degree, yet on the other hand, the Paris-Berlin axis doesn't like Britain’s attitude to the affair and are unlikely to give exceptionalism to cave to British demands.
If the Conservatives are the next British government, and a referendum is called, it could be a very risky business. Britain as a whole might have a fairly close vote and I would err on the side of a 'Leave' result from the people if things stand as they are. However if the EU gets its act together and the Conservatives can pull away a deal, unlikely, but who knows what might happen if other nations in Europe get onboard...then it might be a different picture, with the federalist 'Paris-Berlin' factions beaten down in favour of a much more loose supranational confederacy picture.
Anyhow, I ramble on, there is uncertainty in the future of the EU, but its the kind of uncertainty that we cannot call well, we can see what might happen, but also realise that things might go completely in other directions.