Sue Rostoni gave some new and important information on the final book in the Imperial Commando series on the Starwars.com message boards today:
Last of the Imperial Commando books — We’re seriously considering abandoning this. The time between the two books is going to be years and we’re not sure enough people will still be interested in it to warrant the writing. We have something else in mind, though, something that I know many of you have been wanting for years. So hopefully you’ll be happy with the change. As soon as I can, I’ll give you more details.
The future of the second Imperial Commando has been in question since Karen Traviss ended her run as a Star Wars author, but Sue recently said that a new author had been selected, and that the book was scheduled for 2012.
Source: Club Jade