a good idea *might* be to mess around with the triggers a bit (ai=yes, ai=no) so that a human player does not face the choice "join or die" (1st one means CtD, second one because of the huge neighbour that suddenly forms+bad relations)
perhaps make it so that the if any of those EU countries is Human played THAT country "forms" the EU.
as i see it now FLA is the country forming the EU on Jan 1 2032..
maybe have some events in dec 2031 with trigger "ai=no" that can sleep the FLA event forming the EU, and wake the "form EU" event for the country that has a human player.
perhaps make it so that the if any of those EU countries is Human played THAT country "forms" the EU.
as i see it now FLA is the country forming the EU on Jan 1 2032..
maybe have some events in dec 2031 with trigger "ai=no" that can sleep the FLA event forming the EU, and wake the "form EU" event for the country that has a human player.