New class?
No there won’t be.
There will be 9 new elite specialisations, 1 per class.
The reason why they added the revenant was because 1 heavy armor class was missing since launch.
Technically speaking though, they add 9 classes each expansion. With elite specs, the whole gameplay style of a profession changes, giving it it’s own unique feel, basically making it a “new class”.
Sometimes it does work better than others of course, but still.
So I’d say it’s highly unlikely we’ll ever see a completely new class again and to be honest i think that’s good. Continuing to expand the “class roster” through elite specs is really the best thing they can do from here on.
I totally agree with Takashiro.8701. Those it would be nice for something new in maybe 1 or 2 expansions (not counting the upcoming one) down the road.