Lois was shown looking at the Superman suit as it was neatly tucked away in a box at the barn. Tom Welling said he hadn't seen it in person yet, but he couldn't wait.
"Whatever we do, I want to make sure we earn the suit at the end," Welling said after the panel.
As for other tidbits, John Schneider will be back as Clark's dad for at least one episode, if not more.
Even though he's read his scene, Schneider said: "I don't know if that means I'm a spirit. I'm not really sure exactly what I am; real, imaginary, memory? But it's the best written scene I've ever done on Smallville."
Alison Mack fans will also be pleased to hear Chloe will return to tie up her character and the relationship with Oliver.
Meanwhile, producers are still working to get Michael Rosenbaum to return as Lex.
"I know he's thinking about it," says Welling. "I know he knows that we want him and we don't feel like we can end it without it."
Check out the trailer below, the suit pops up around the 1:20 mark: