Did you actually look beyond just the pretty colors? Those boxes have LoS written all over them - the garage looks like some Halo bunker designed for a FPS game, not a game that has 3-second casted abilities that break when LoS is broken. They'll be melee dominated maps. If you're a Sage, Commando or a Sniper, stick to WZ's.
well the pretty colors is all to go on now hence the "pvp arenas LOOKS...pretty great" not "the arenas gameplay is pretty great"