I was obviously talking about nanos from different schools/lines. But like I said, noone knows if all nanos are getting a local (think school or line, we don't know which one yet) cooldown and if they (or which ones) will keep their recharge time.
As for NTs, you can expect them to get 3 nuking lines.
Edit: Just to be sure you get it right. Schools are the ones in your nano window.
Combat,
Healing,
Protection,
Psionic and
Space.
Lines (or strains) are subdivision of schools. Nanos from the same line don't stack.
Doctor strength and stamina buffs from the Healing school,
Reflect shields from the protection school,
Snares from the combat school,
Roots from the combat school, etc.