The Final Say: Who's Staying, and Who's Going For Season 8

Here's the latest buzz on who's staying and who's going for Season 8 of Smallville:
Tom Welling (Clark), Allison Mack (Chloe), Erica Durance (Lois), Aaron Ashmore (Jimmy), and Justin Hartley (Oliver) are all contracted to appear in Season 8.
The contract for Michael Rosenbaum (Lex) concluded with the end of Season Seven, and he will not be back as a series regular for Season 8.
Kristin Kreuk (Lana) will be back for "a handful" of episodes to make up for what she missed at the end of Season 7.
Erica Durance will be in her usual 12-13 episodes though there is an option to get her for more.
Laura Vandervoort will no longer be a series regular but is expected to make guest appearances to wrap up Kara's storylines.
Sam Witwer and Cassidy Freeman will be joining the cast as Davis Bloome, aka Doomsday, and Tess Mercer, respectively.