Does Kingdoms add anything to the Grand Campaign?

[lancelot]

For the OP:
There is already a mod that allows some of the new Kingdoms features to be used in the normal Grand Campaign engine. I expect that many Grand Campaign mods will incorporate these in the future.

Which mod is that and does this mod require Kingdoms or can it just import all the relevant Kingdoms stuff into a non-kingdoms version of MTW2?

Cheers.