Laura Vandervoort in Smallville by Michael Courtney/The CW
A new development tempers the good news about Allison Mack re-signing, which itself improved the mood after Michael Rosenbaum's Smallvile departure was confirmed: Laura Vandervoort's status as Kara is as up-in-the-air as, well, Supergirl in flight.

As fans noticed in the CW's upfronts announcement earlier this week, "They announced the cast... and I'm not a part of it," Vandervoort tells me, letting out a self-effacing laugh. "We were all surprised when they chose not to bring me back as a regular, but I'm sure I'll be back for one or two [episodes]!"

Looking at the bright side, she notes, "The show is about Clark Kent, and I was honored to be a part of it. I mean, my character became more than it was supposed to be. She ended up sticking around the entire season." Stories even surfaced a while ago suggesting that when Tom Welling hangs up his red jacket and blue tee, Kara might be spun off into her own series.

In the meantime, Vandervoort has a hot summer planned - literally. She's now in Hawaii filming Into the Blue 2, a follow-up to the guilty pleasure starring Paul Walker and Jessica Alba. Chris Carmack ( The O.C.) plays LV's partner in deep-sea diving and more. "We have a great cast, including also Marsha Thomason ( Lost) and David Anders ( Heroes)," she shares. "We're very lucky." Comparing Blue 2 to the eye candy-filled original, she says, "This is more of a suspense thriller. But yes, everyone is in bathing suits and stuff like that!"

Related:
" Smallville, Hills Hotties Head Into the Blue
" Exclusive: Justin Hartley Eyes Smallville Comeback
" Super Exclusive Smallville News: Chloe's Staying!
" Smallville Execs Thank Star for Lex Appeal, Tease Doomsday's Arrival