BooNZ
Banned
Returning to the question at hand, "what does Britain do?" The POD is a decision by the Kaiser to honor Belgian neutrality and commit to a more defensive war with France and a more offensive war towards Russia. Grey has entangled Britain with both France and Russia, and at least as France is concerned has committed to supporting her effort to re-take A-L. At minimum the British are expected to cordon the Channel and keep the HSF from attacking the French coast or its coastal shipping. It can be expected to provide monetary and logistical support to both France and Russia. And lastly it is hoped the BEF will contribute to the offensive against Germany and with casualties will get Britain fully into the war to add manpower and resource to the depths of her ability.
Aside from facilitating secured loans with the US or providing those secured loans to France itself, I can't see a neutral Britain doing much more. The French industrial heartland remains under French control and the French do not have the carry the British army through 1915...
Even if you achieve British belligerence, there is no imperative to get the BEF onto the continent. OTL even Churchill was suggesting British belligerence be limited to naval matters. Ultimately the British are likely to become entangled on the continent, but I suspect no time soon.
France wants A-L returned to her control. She likely wants to humiliate Germany and gain something more, the Saar, the Rheinland, colonies, something? The Russians want East Prussia and Posen, the polish lands in Germany. Both want huge reparations monies. And what does Britain want? A balance of power in Europe? A continent too weak or distracted to attack her? A continent that will feed her trade?
You missed the bit about the Germany wanting to dominate the world and force everyone to eat fermented cabbage and sausage...
I'm not aware of any specific war goals initially between Germany and Russia - neither were particularly keen on even more Polish minorities. Germany was intent on propping up A-H, while Russia was intent on re-ordering the Balkans. France certainly wanted the return of A-L and possibly revenge, but anything else would have been gravy.
In my opinion, the majority of the British wanted the status quo. A great continental war in Europe made this improbable and the German invasion of Belgium made it impossible.
Arguments galore persist herein, at some 70 pages and almost 1400 posts the jury is still hung. I am willing to throw out everything I have drafted and have a war open on the POD, I am willing to tact between events to keep Wilhelm looking East and the war begin as above. The coin toss is Britain the belligerent or not. I have a Sovereign to flip.
To be fair, the dissenting jurors routinely ignore the proceedings or seek to manufacture evidence based on their own reality, contrary the actual evidence available. I do not believe British belligerence is a coin toss, but a choice between reality and a good yarn. To make the story even more compelling you will also need to invent Russian competence and Italian courage.