I liked these ideas so saved here for future development:
May be against short term realities a bit, but as far as I know Germans and also their history suggests that their aim to control Europe fiscally (with some minor allies ) is the real one and whatever they do that governing strategic target remains valid.
That also ensures that UK will be seeking to distance from Europe and mover into USA fiscal /financial arms as Japan has already clearly done.
The raising conflict rhetoric between Japan and China actually favors USD as reserve currency as it adds value to USA protection of Japan (the military asset behind USD ) and stability ( at the same time enciting Japan to get more aggressive) . Japan has already announced payment for this in term of increasing USA bond purchases and aid loans to developing world repayable in USD. Its clear as water that the destabilization of the region is accepted or even originates from the USA.
Instability in other regions does not require enough utilization of the military assets backing USD as reserve currency, as war on terror has shown. Spending 2001-2012 has not increased the value of that as all as terrorism is not perceived as strong enough threat.
I suggest that Britains confrontational stance with Europe ( not military though) also helps USD as reserve currency, and we will see further escalation of that as well.