Predictions for new FOTM class?

If marauders and powertechs get nerfed it will definitly be snipers. That said even w/ snipers being strong the game will be a lot more balanced.

Sorc./Sage DPS needs help end-game (for their DoT damage -since everyone has gained far more HP while their DoT's still only crit ~650 per tick as full WH-geared/augged and their survivability is pretty poor).

Current FoTM's are:
Sniper/Slinger : they're pretty good against everything, and become significantly more powerful when paired up - no idea how anyone can say they're only good against melees. Each spec has stengths/weaknesses compared to the others. I'll have to say that gunslingers have the biggest advantage now, since they changed the target acquired/illegal mods since snipers don't benefit much from the accuracy bonus (unless it's to counter a defensive chance cooldown used by an enemy) - the accuracy bonus significantly increases gunslinger off-hand hit chance (as it was, snipers have always done more damage with mirrored abilities when gunslingers only connect with their main-hand attacks and snipers deal less total damage than gunslingers that connect with both main-hand/off-hand attacks; the change to this ability drastically favors gunslingers and you'll notice that any good Sharp Shooter specced gunslinger will now easily out-damage their marksman sniper mirrors in level 50 pvp).

Wariror/Knight: Jugg/Guardian - Two specs are becoming more and more frequent - Rage/Focus DPS specs (focused on stacking power/surge for rediculous Smash damage) followed a little less frequently by the Hybrid Veng/Vigalance + tank spec - (easily better at tanking than pure tank specs, dishes out very good sustained DPS, and easily one of, if not THE BEST ball-carrier in hutt-ball).
And of course, Mara/Sent - most of these are trying Carnage/Combat specs, though you'll still see many annihilation/watchman specs since that is the best pug spec for a mara/sent.

PT/VG: One of the most common classes, currently - most are pyro/assault specced and queueing in groups to decimate everything, but you'll see some AP/Tactics specs on occasion, which aren't bad in the right hands for damage, though much of their DPS comes from enemy clustering - they're great in huttball (both as ball-carriers and fire-bathers), and they're great in 1v1's (far more diversity against enemy classes/specs compared to pyro/assault due to their speed buff + slow/snare/knockback immunity cooldown and they deal very consistant single-target DPS) Unfortunately, the loss of significant DoT damage and procced resets for one of their most damaging abilities tends to result in significantly lower likeliehood to be used.

Assassin/Shadow: Another class that many people who don't already have an inquisitor/consular typically choose to play as. Tank specs are very good (best overall survivability among all classes, incredible utility/role support, amazingly high damage output for a tank classe all make this a great class). DPS specs - the stealth-based spec is nasty at single-target DPS. Yes, it is squishy and prone to rapid deaths when focused (think sorc/sage without bubble), but this spec is overlooked and underestimated, I assure you, and I haven't seen any other class that can stun-lock an enemy with hard stuns for 10 seconds straight. - Madness/Balance specs - again, they're squishy, but they can dish out great burst and sustained DPS, nice utility (instant mez), and reactive healing helps them survive; they're also very good at keeping enemies from escaping. Though Assassins/Shadows are less common now as viable FoTM's, this is only because most players already have one up to 50, but they can't be dismissed from being FoTM, since anyone who doesn't already have one will likely roll one. It's uncommon to see less than 2 on a team in any given WZ.

Healers - yes, I said it. Healers are certainly a FoTM, particularly ops/scound healers. Healers turn the tides in warzones, even ranked ones, so many players have begun rolling one. RWZ teams have 1-3 healers (2 is the most common) and the only teams that rely on 1 healer are those teams that are stacked with crazy DPS (usually 2-3 "lol-smash"-specced warriors/knights, 2-3 pyro/assault specced pt/vg, and at least 1 assassin/shadow - other classes/specs are fillers for flavor if there are only 2 warriors/knights and/or pt's/vg's, the most commonly used classes for this is sniper/gunslinger and dps assassin/shadow -note that I said warrior/knight, if there are 3, it's usually 2x jugg/guardians and 1x marauder/sentinel, though I have seen it in favor of the mara/sents, but they typically do worse overall).

My guess is that they will nerf Assassins next, in the sense of killing the tank/dps hybrid builds. I also believe they will tone down Marauders' defensive cooldowns.

And I think there is a very slight change to tone down Pyrotechs (specifically Powertechs). If Pyro doesnt get nerfed, I believe it will become an even more popular FOTM than it is now once Assassin and Mara get nerfed.

Of course, maybe they dont even nerf Assassin or Marauder. If they don't, I predict an increased FOTM count within those classes.

Thanks for the well thought out comment. I have to agree with most of this except for the healer part. I agree with what you said about healers but am not sure I would classify them as FOTM per say. Usually a FOTM class undergoes a nerf eventually and needs one and is easy to play (3 skill spam) Ops/scound healers on the other hand require skill and concentration. In that case I would say its more of a skill=reward not lack of skill=reward. So for that reason I believe ops/scound healers are fine and should not be nerfed which i guess wouldnt make it a FoTM class. Also I'm not quite sure how many people enjoy playing the healer role. Majority of people are dps because it's the easiest type of class to play. Don't take me wrong, dps does require skill to make the most out of it but it does not require constant check ups on your team like a healer has to. So for that reason I dont actually think a healer could ever be FoTM tbh. Imagine a warzone where there were only healers....*shudders*