It is unlikely that we'll get more than two new jobs. And possible that we only get one new job.
Not too long ago when asked about jobS, Yoshi looked really flustered about the possibility of more than one new job. Take that any way you want.

They have also previously indicated that it's around one years worth of work to create a single new job. Despite this they added NIN mid 2.x, and 3 new jobs for 3.0, which they also indicated was way too much work to repeat.

All things considered, two jobs at most is what we'll get.