I think you are being too overcautious where it conflicts with the fun of what alternate universe role-plays are. It's fine to have a strict outline of the beginning but to put so many walls for everybody takes out the endless possibilities of an AU sequence of role-plays can have. You shouldn't be worrying about conflict once the role-play is going as at that point its branching out into it's own reality and that is the fun in playing these sort of things. Being ruled by canon detracts from it. 

Either way, that's not the reason I'm not coming back to this RP, but here is some outline expressions:

1) I defined two characters I really like for this particular timeline and I'm not going to create new characters right now.
2) We have only started this thing about a month ago, I do not like it when a perfectly semi-active RP is "cancelled" out of nowhere. 
3) I can't muster interest for Aegon's Conquest.

Hope you all have fun though.