I like the spec at 110, but the fact is it is coming. Since they dont seems to want to do that now, my guess is next major patch. They keep nerfing the damage, which granted right now makes it stronger and not pants on retard like early beta. Mobility is not the only problem, they recently buffed Stam, which buff Sub even further. It has too much survivability along side the mobility. Its PVP talent is among the strongest in the game. For example no brainer stuff like cold blooded, which was buffed indirectly when they buffed everyone stam. The slower they make PVP, the better this version of sub gets. It has low reliance on cooldown. Its more tanky then all the plate DPS specs. For some odd reason, Sub artifact weapon is filled with PVP and survivability stuff almost like a tanking spec. That shit all adds up. Sub is Adamantium Mosquitos at 110 in pvp zone. And an invulnerable overlord in world pvp.
I like the new shadow dance animation and alot of the sub stuff, i just wish they didnt make it this clear it would be something so massively OP they eventually will nuke it with a nerf missile launcher.