They won Superboy, which is why Superboy will never come back and be called Superboy and wear the suit. DC refuses to pay them a red cent.
So if the Siegels decide to license the character to Marvel Comics, we'll get:
Superboy, Spider-Man, and Johnny Storm out for a night on the town in the Fantasticar;
Superboy tries out for the Fantastic Four;
The Superboy Robots vs. the Doctor Doom Robots;
Superboy vs. X-Factor;
and a Superboy movie that's really cool except for the parts where he wears a motorcycle helmet whenever he flies.