I seriously hope they do NOT get LNC. Tired of so many classes/jobs leeching off my main! D:<

Kind of kidding there, but seriously I think it will be Rogue (no one has it yet, I could also see DRK getting Rogue and Marauder)

Cross-class skills for Machinist would be:
Perfect Dodge (dodge 1 attack)
Kiss of the Wasp (+5% dmg)
Mutilate (DoT)
Goad (TP regen)
Jugulate (silence)
Raging Strikes (+20% dmg for 20s)
Hawk's Eye (+20% acc for 20s)
Quelling Strikes (-enmity gain)
Barrage (2 attacks per auto-attack for 10s) <=This needs to be added to cross-class!