Probably Guest Star for Season 2

[wishfulclicking]

When you’re watching tonight’s season finale of Glee, and Emma mentions that she’s been dating her dentist, go ahead and draw yourself a mental picture of… John Stamos!

Yup, I hear the Fox hit and the actor formerly known as Uncle Jesse are nearing a deal for him to recur next season as Will’s competition for the cutest neurotic at McKinley High.

And if the agreement gets made, bet on a sing-off between her two suitors: Though Stamos is best known for his TV roles, he’s also got street cred on Broadway, having appeared in such musicals as Bye Bye Birdie.

Source

It's not final yet but I think this could be a cool thing.