Effects of no Welf-Hohenzollern reconciliation?

After losing Hanover to Prussia, George V stuck to his claim and stayed largely in Austria and Great Britain, even paying for a small private army of loyalists. His son, Ernest Augustus initially followed the same line, but later reconciled with the Hohenzollerns when his son was offered a Hohenzollern bride and a recognition of his claim to the duchy of Brunswick (if Ernest Augustus himself renounced it).

What I'd like to see is a timeline where this late reconciliation does not happen. Perhaps the idea simply does not come to Wilhelm II. Perhaps prince George William does not die in a car crash and is arranged to marry someone else before the idea of a Prussian bride is floated Ernest's way. Perhaps Ernest Augustus is in a foul mood and takes the comparatively paltry offer as an insult instead. Either way, the Hanoverians do not choose to side with Wilhelm II right before the World War kicks off and possibly move to Britain when the Sarajevo assassination takes place, recognizing that the battle lines would place Austria alongside Germany in the upcoming war.

Might there still be some remnant of a Guelphic legion in their employ at the time? How would forces loyal to the deposed monarch of Hanover (and also Brunswick due to inheritance) fighting against German troops change the relationship between German and British royals and diplomats? Could British propaganda perhaps be pointed less at the 'vile hun' and more the 'greedy and belligerent Prussian'

With the Hanoverians fighting alongside the British and therefore kept in the line of succession, would Britain be more supportive of retaining (some of) the German noble houses post-war?

Would France be willing to accept a dissolution of the German Empire instead of (most of?) the heavy reparations they desired and what effect would that have on Germany's economy and future going forwards?
 
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