Random House is among the publishers doing some housecleaning and restructuring right now. I’m not seeing Del Rey get any mentions, even in the blogs, but the Star Wars line is a massive cash cow, so maybe the folks there will weather it out. (Wizards of the Coast, however…)
But my point: I’m going to echo Scalzi and say that now is a good time to go buy some stuff that doesn’t have the safety net of a massive franchise and a 4-year contract, i.e. all those other books. Remember, science fiction and fantasy is a niche market, and thus likely to get caught up in cuts along the bottom line. So go out and support your favorites: Every paperback helps, and the bookstores aren’t doing that hot, either.