Server wars :)

Is it possible

At the moment, no.

Although, most players are hopeful that it will be possible in the near future. This will surely solve a lot of the problems/issues players have with the current PvP system.

Let's hope we get this in the next big updates (but most likely won't be version 1.3 or 1.4).

I really hope they do that. It would be fun. Anyway, i don't know how they do in other servers but in my server we don't use jelly or potion in PvP. If players from other server use these, i'll be upset because i think it's not a fair fight. - -"

I wish they'd make it rule-based PvP, wherein the Master of the room would set rules like:
Allowed Rarity: Rare
Allowed Types: Fire, Water, Grass
Dual / Multie Monsters Allowed: No
Class: S to A-

And the Matching AI should only look for the qualified players during quick start before having them fight, this would also provide gamers the ability to choose w/c room they'd be joining at in PvP.. Aside from which, the little players won't have to worry whether they'd get matched up against stronger opponents.. Though i think, this would come at a great cost during matching phase.. May slow the performance of matching phase also..