With the success of The Avengers, it's really no surprise that other studios are a little more willing to work with Marvel Studios. Case in point, Fox Studios are looking to make a trade with Marvel Studios. Fox owns the rights to several Marvel characters, including the X-Men series. They are currently trying to make reboots of their other two, less successful series The Fantastic Four and Daredevil. The problem is that the rights to Daredevil are running out, so Fox is reportedly willing to give Marvel Studios the rights back for Fantastic Four characters Galactus and The Silver Surfer is exchange for letting Fox keep Daredevil.
This is awesome. Let alone the idea that The Avengers could end up fighting Galactus and Thanos along side The Sliver Surfer, but this could potentially lead to crossovers (Or at least references) with Fantastic Four and Daredevil. Plus, Joe Carnahan, who directed the incredibly awesome The Grey could direct the reboot. And that is awesome.