I don't think they'll be splitting the RPers and non-RPers up unless the masses of folks just congregate to one server (assumed this cuz I could have sworn they said they weren't going to split up PvP and non-PvPers).
I don't personally RP either but justify my participation in the lore by using the lazy route of saying "I was transported into this world, so the actions that are taking place are my own. Deal wid it". Ultima did, the horrible DnD cartoon did it, imma do it too.