Animated movies usually clock in at around 90 minutes, so if you want a truncated plot (from the already truncated plot) and about six songs from the stage musical, then this is the way to go.
I thought everybody hated it when Dreamgirls and Nine lost over half their scores. If it's to fit into a typical animated feature format, you'll get a lot of adorable hijinks with Elphaba and Chistery, the baby Cowardly Lion, and other (ready for plush-toy) critters, and you'll hear her sing about three times at most.
My guess:
A severely edited opening (No One Mourns the Wicked)
The Wizard and I
Dancing Through Life (edited way down to just Fiyero's part)
Popular
One Short Day (edited way down)
Defying Gravity
No Good Deed (edited way down)
March of the Witch Hunters
For Good
That would be all they'd have time for unless it was a 2 1/2 hour animated feature with everything people would want, which would cost the studio almost twice as much to produce as a 90 minute film. I don't think Disney or Universal or anybody else would approve a $250 million budget to do that.
"Jaws is the Citizen Kane of movies."
blocked: logan2, Diamonds3, Hamilton22