Well, here's a trailer for Starship Troopers 3: Marauder, which I guess will be direct-to-video like Starship Troopers 2: Hero of the Federation. But Casper Van Dien of the first movie will be returning.
The film will be directed by the writer of the first two films, Edward Neumeier.
Despite being a direct-to-video release, I actually enjoyed Starship Troopers 2, and Starship Troopers 3 looks to be quite intriguing, too -- in a so-bad-it's-good kind of way, but that's what all the Starship Troopers films were aiming for.
I'm personally a big fan of the original Starship Troopers. It's a far more intelligent movie than most people give it credit for. I felt it was highly clever, not to mention it had awesome effects and to this day, it has some of the most gorgeous model work ever, created by Sony Pictures Imageworks when they had their miniature shop Thunderstone.