Toys R Us has a bunch of toys for Nicktoons by Jazwares, the same company that does the toys for Sonic the Hedgehog.
Check it out, it's pretty cool.
One of the reasons the show was end because it was purported Butch couldn't get any merchandise for the show.
If we are to see a return, you can bet one thing the show will need is merchandise, and a toyline with Jazwares would be awesome.
Think: Toys of Skulker, Vlad Plasmius, Freakshow, Dark Danny, Ember McLain, Dani Phantom and bunch more... wouldn't that be cool?