Britain continuing to fight after ALL her major allies and all its continental forces are beaten is ASB-level Britwank.
Even if the British government would want to fight on, the British people wouldnt. After 2-3 years of gruelling trench warfare, and the loss of thousands of their soldiers, they wont fight a lost cause alone against the CP-s.
Assuming all her major allies surrender, Britain will fight on as long as it takes to get a lenient peace and not a moment longer. On top of that, assuming that France and Russia have been knocked out what reason does Germany have to continue fighting the British? The issue of colonies is one that can be dealt with at the negotiating table.
The issues are:
Effectively all of Germany's colonies have been taken by British, Commonwealth or Japanese forces. Germany is going to want them back, or at least compensation
Britain and the Commonwealth have gained a lot of territory. They are going to want to keep it, especially those parts of Africa that allow a Cape to Cairo railway
The Ottomans are going to want their Middle East territory back
The Italians are going to want some colonial gains
Japan has seized a lot of German colonies in the pacific and far east. they aren't going to be given back and Germany doesn't have the capability of taking them back
On the table and available for horse trading are all French, Belgian and lets not forget Portugese colonies
Suggested deal:
Britain keeps German East Africa and German South West Africa
Britain (well Australia) and Japan keep all German territory they seized in the Pacific and Far East
The Ottomans get their 1914 borders in the Middle East and a free hand in western persia. In the Caucusus (sp?) they get their B-L borders
Italy gets Tunis, French Somaliland and a free hand to give Ethiopia another go
Germany gets the Belgian Congo, French Congo (what's now Congo-brazzaville), Morocco, and all French North Africa except Algeria which France retains
Angola goes to Germany, Mozambique to Britain. Goa is ceded to Britain
Oh, and to compensate Germany for the loss of their pacific possessions they get French Indochina and the French spheres of influence in China are ceded to Germany
thoughts?