Development on Jurassic Park IV is heating up, and the big question is will Steven Spielberg return to helm the fourth film in the series?

As of right now, Jurassic Park 3 director Joe Johnston remains Spielberg's first pick to helm the project. But according to Sky News, Spielberg is willing to take helm of the project if Johnston drops out.

"Joe is my go-to ‘Jurassic’ guy now," Spielberg told SF in July. "I think Joe did an amazing job putting together those battles. And I think those battles Joe put together… I was jealous of the spinosaurus attack on the airplane! That scene where the spinosaurus attacks the airplane and the passengers inside the airplane was every bit as good as I thought the main road attack in ‘Jurassic Park’ was. So I’m a huge fan of Joe’s, and he’s the right guy to do the fourth one."

Universal is trying to sign Johnston to direct The Mummy 3, which is set to begin shooting early next year, with a tentative 2008 release. Johnston is expected to turn down the project.

Spielberg is expected to helm Lincoln in late 2007. Jurassic Park 4 is tentatively set for a Summer 2008 release.