Erich Schoeneweiss posted on Star Wars Books account on Facebook:
Just announced at our Del Rey Star Wars books panel: Drew Karpyshyn will write a fourth novel that will tie into The Old Republic for Fall 2012 and Tim Zahn will write a new novel starring Han Solo set in the classic films era. More details to come on both as they develop.
Dunc adds: I’m sad to see Zahn in the movie era again, but as Han has frequently been the highlight of his other works there, it has possibility. Some on Twitter are hopeful that this could tie into Han’s smuggling days (or at least, other smugglers) which could be interesting.