There's going to be a successor to Steel Storm, an indie action shooter game. Steel Storm 2, however, will be a first person shooter.
Development is still early on for Steel Storm 2, but it's now been publicly announced and there's a teaser web-site. The teaser site reads "Steel Storm 2 is an old-school FPS in the spirit of Doom and Quake. It's spin off in the original Steel Storm universe. Linux is served first."
Read the full thing at http://www.phoronix.com/scan.php?page=news_item&px=MTAxNzk