Imo, the game is too cookie-cutter and there is very little skill-diference between breeds.
So here are some ideas:
PS/
Perking one of the two AI-perklines will make you unable to perk the other.
AI-perks
1: Champion of nanocombat - Nanomage only (remove nanofeast and make BC have less damage but better debuff)
2: New AI-perkline that gives add damage - Nanomage only (move absorb-remover perk here)
1: Champion of heavy/light artillery/Infantry - Opifex only (remove fuss and ff, add blind here)
2: New AI-perkline that gives aad - Opifex only (add 'limber' or 'wit' to it, remove opening from the game)
1: Mongo Rage - Atrox only (move MR from atrox primary to here and remove Body Tackle from the game)
2: New AI-perkline that gives HP - Atrox only (move 'heal' from 'first aid' here with a little more healingpower)
1: A perkline with weaponskills (not as good as champion) for solitus (move the perk 'sphere' here)
2: A perkline with nanoskills (not as good as champion) for solitus (add a perk that debuffs nanoresist)
SL
Enhance Health - Solitus and Atrox only (move 'surrival' here)
Enhance Nano (buffs nanopool) - Solitus and Mage only (move 'regain nano' here)
Enhance Agility - Solitus And Opifex - It buffs aad/aao/runspeed (move the rootresist-perk here)
..................................
So thats my idea.
This way there is no perk-actions from the twinking-perks and less generic ai-damageperks.
Since the game evolves much around generic ai-perks (combined with special-attacks) in pvp and the outcome of that is too similar to FPS-combat (instead of turnbased-combat) I suggest to remove lots of the ai-damageperks. Bring back professions to the game.
Edit:
Decrease requirements on DB and APF-nanos.