Warner Bros. and DC Comics have won a case filed by the heirs of Superman co-creator Jerome Siegel, says Variety.

Siegel estate accused Warner Bros. of making “sweetheart deals” with DC Comics because the license fees paid by the studio to DC had been done below the fair market value, but on Wednesday U.S. District Court Judge Stephen G. Larsen ruled on Warner Bros. favor making it clear that no “sweetheart” deals were made. This means that the heirs will be able to seek profits from DC only, and not from Warner Bros.

But while this may be good news, it won’t be for long. Warner Bros. is going to lose the copyright to the Superman franchise in 2013; a franchise that has belonged to Warner Bros. since the 1970′s.

Five Superman films, a couple TV series, an animated series starring Superman, and one animated series where he joined the rest of the Justice League later, Superman will have one last hit with Warner Bros. Production on a new Superman film must be started by 2011, in order to gain some money, but that seems like such a short amount of time to wow anyone.

So that’s that– in three and something years, Warner Bros. long run with Superman will be over.

What do you think? How do you feel?