As for the Friday thing - YAY its not up against big bang! But aw crap its in the Graveyard slot. Lets hope it can carve a niche there like Fringe managed.
And as for Harmon maybe not coming back - I....don't mind that much. Yes, he was the brains behind the show in season 1 and 2, but this year he seem's to have gone too far, a bit too mad with power and what with his rather public alcoholism and douche attitude I think it may help for someone else to take over (It's probably beyond the realm, but I think Megan Ganz would be great, even if she hasnt had much experience running a show).