I do have a suggestion for this RP map, in that there should be a degree of cultural influence from neighbouring territories. For example, Luthori, while predominantly English, should have minor enclaves of Hobrazians, Beluzians, Darnussians/Narikatonians, and maybe some Rutanians and people from Hawu Mumenhes and maybe Kundrati, at least as a generally larger portion of the population than say Badarans or Indralans. Short of there being some heavy border control RP or colonial influence, there should be a lot more cultural "bleed" happening from neighbours than from distant nations. It would make the cultural makeup of nations a lot more realistic, I feel.
Just something that I think should be considered, since we're on the topic of evolving our cultural RP at the moment.