I would love to see an evolutionary MM where each Tier of pet was from a different era:
Protoplasm Pets (all melee but one causes -Def, one -Res, one -Dam),
Caveman (Scrapper) and
Futuristic Man (Blaster or Troller with leadership)
Also Staff Assault for Doms, Water Control, Whips, Wind Control.
It would be nice to see Khallisti Warf finished, which could take care of adding new content.
If the game went sub or microtrans, make it affordable.