My bet is archer/rogue, as no other class up to this point has rogue skills as cross class skills and archer seems obvious in my opinion.
Machinist may very well get an own TP-regeneration skill, while gaining access to goad.
New jobs getting no cross class skills at all seems kind of unlikely too considering that the cross class system would have to be removed from every other job aswell, because the new jobs would miss a whole lot of five skills otherwise, all of which can be VERY useful. It would just be a disadvantage while playing the new jobs, except if SE is capable of somehow compensating it.