I'm not sure what the difference is.

But I'm getting confused which one is P2P, F2P, B2P...

I read the "Swords of the New World" (K2) is going to be P2P, or F2P with lv 20 cap..

the IAH network is international edition I'm assuming... but, I'm not sure if it'll stay F2P after beta, or if it is going to do what K2 is doing.
But there is also the Signature Edition by IAH. So will it be B2P, but no monthly charges? (Guild Wars)

Or B2P, P2P after beta?

Thanks.

EDIT: IAH, is the singapore/philippines/malaysia host.

IAH would probably choose the P2P + Item Mall concept. There's a point card included in the Limited edition box set, which has 180 game point, which i assume they will go P2P. IAH, singapore host.

Im pretty sure there is no "International" version of the game. It's either IAH (South eastern asia) or K2 (North American) IAH is currently open beta, I doubt it is going to be P2P WITH item mall. As for K2 it's going to be P2P + item mall i think.