Now you see me, now you

With the official confirmation of in-combat stealth being handed out like candy in SWTOR, we have to look at the PvP lakes this way:
Consulars/Inquistitors, Smugglers/Agents, Warriors/Knights all have a combat vanish available in one of their ACs.

Troopers/Bounty Hunters don't have any combat stealth yet, but at this point I wouldn't be surprised if they got an in-combat camouflage where they turn into a bush or something.

Some people are concerned about how this could be overpowered in PvP lakes, with terms like 'reset button' and 'Get Out of Jail Free Card' being used.

 
Like, just looking at the Smuggler AC, he could sap, cleanse all dots himself and sprint into an improved stealth vanish to heal up behind cover while you're bleeding to death and spinning around screaming like you're in a shitty horror movie.

But I'm sure this has been tested in the lakes for months now and has nothing to do with WoW Rogues wanting all their old WoW Rogue abilities or the fact that it appears nigh impossible to unflag from combat.