My two cents, as a player:
Molly-Bretonian truce/ceasefire/whatever is a bad thing and should not happen.
I suggest: reverting to a situation where the Mollies seek to avenge Bretonian intrusions and tea-drinking. Molly pugilism should be met with Bretonian stiff upper lip and extreme violence.
Also, get genuine Irish folk to play Mollies in the style of the most mental republican splinter groups in recent history. No one worth his republican salt would kowtow to the Anglo-Saxon invaders and would instead hunger-strike, blow up commercial centres, use proxy bombs and generally be beastly about the cause of national sovereignty to a degree that would (and should) shock anyone civilised.
Letting other folk chew up your natural resources is silly and possibly not roleplaying properly.