Shouldn't Leonardo pair up with Mona Lisa?

[neatoman]

Originally Posted by TigerClaw

Except for the hardest of hardcore fans, that do care about the characters.

The hardest of hardcore are the 1% of the 1%, I seriously doubt that many people care about Mutagen Man or Muckman for those single episodes they appeared in. In the case of Mondo it seems the excuse both Nick and IDW had for bringing him back was to have a character with FW/Movie Mikey's persona without the risk of having Mikey himself look shallow and outdated. The fact they cast Robbie Rist in the role enforces this idea.

As for why Mona Lisa won't return, the role people want her to play is filled out by Alopex in the IDW series and the Nick series won't have her because Ciro has some really weird ideas about girls in cartoons.