Here are the tweets from Michael Rosenbaum
Lots of good news coming soon. I have to shut up until I’m allowed to say something. Patience young jedi’s.
Sorry. It’s not Smallville related.I’ve already stated that I’m not returning.I’d never lead you guys on like that.I appreciate your support
Not the big big news yet,but I’ll be playing a really funny role in Adam F. Goldberg/Seth Gordon comedy Pilot for FOX,with Christian Slater.

Ohhhh man, come ON Michael! You have to come back for at least a few episodes in Season 10! What happened to helping finish out the story properly for the fans? This is highly disappointing.
After seeing this news, it is clear to me that Rosenbaum could care less about the show and the fans that essentially made his career. Hardly any one would know who Michael Rosenbaum is if it hadn’t been for Smallville and its fan base. The majority of the movies he’s been in have not done well to my knowledge. Show some gratitude, Rosenbaum!!
Roseenbaum at LEAST come out in a few episodes in smallville is just not the same without a lexs. think about tom welling for sec he wants you to work with him for the 10th season. think about it micheal ?
i agree Michael you gotta come back bro!! don’t make me beg. OK fine ill beg!! please!!!!!!!!!!!
LINK Sorry that its in German but the part that Michael speaks is in English…There is a possibility that he will return….Its a little half way through the video that you’ll see the interview.