Yeah I suppose. You could say the same about Han Solo, though, especially since they might cast someone who'll tarnish his character (i.e. Hayden Christensen ruining young Vader).
A young Yoda film, set hundreds of years before the films would've been sweet.
This guy needs to be Han Solo in the spin-off:
http://www.youtube.com/watch?v=bba_wPdLxp4