Is Season 9 Smallville's last?

As previously posted here, Smallville is officially moving to Fridays on its Season 9 come this Fall 2009-10 Schedule for the CW network. There were rumors that Season 9 might be Smallville's last, but not necessarily according to CW entertainment president Dawn Ostroff during the CW's 2009 Upfront presentation, Thursday (May 21st).

Here's an article mention from TVGuide.com:

Asked if Clark Kent will hang up his red windbreaker after Season 9, CW entertainment president Dawn Ostroff told TVGuide.com on Thursday, "No .... It's not necessarily the last season." Ostroff then volunteered, "I hope it's not."