Many ppl says that PvP(not open, but arena and gvg) will be implemented before the end of july. "Because IMC says"
But i cannot find exact sentence.
In weekly QnA they just say:
The PVP system is included in the list of major updates we WANT to implement AFTER the kTOS-iTOS repository merging process is finished. This will include the Team Battle League feature, as well as GvG within servers of the same region.
So no exact talks about implementing.
i think its ok to assume thats we will get almost all thing in KTOS after the merge
This post was flagged by the community and is temporarily hidden.
FPS and optimization? We already know That fps drop is proportional to the amount of players on your screen, so in this sense with a so TINY map like battle arena + 5vs5 team we are going to have the same fps-drop ratio as a Mercenary Post mission, i think it will be smooth playable
Balancing? According to IMC, KTOS Merge will bring it to us
I think there are no more reasons for IMC to continue delaying the release of Battle Arena after we get the merge.
I’m not trying to be white knight because know IMC really sucks, but this game is awesome, the battle mechanics are unique, Let’s give these guys another chance, I really hope the Tree of Savior lighten up after that update.
Can’t wait for batle arena 
Unique - thats the word keeps me waiting for Arena (and openganking).
Fps - thats why I’m not so care about masspvp.
NoPvP - thats makes tonns of my friends and enemies leave the game forever.