The "L2BattleRoyale" has definitely been validated as legit and fun source of play.
Right now, we're waiting for mass adoption so we can have regular games and larger maps. Personally I'm more excited about a Wasteland size map with 100+ players, with various loot, like pots and craftable pots, mounts, airdrops and eventually the KING OF THE GAME.
The weapon system needs tweaking I think. I mean it's fine as it is in 5 man fast games, but some more thought put into it wouldn't hurt nobody. :)
Anyway I urge everyone to try it out, join the discord channel, invite people for games. It's fun, fast, simple, has ranking and prestige. ;)