my vote for ursula is harriet harris- she did replace pat carroll as mrs meers in millie in la jolla so one would assume she has similar range. and as i've said before vanessa is going to be a chorus girl, remember her key trait is that she has ariel's voice- in other words lipsyncs. not to mention at the end turns back into the purple version so even if they could get an actress outta the purple make-up and fatsuit (think the full make-up process for elphaba and edna turnblad combined) they'd never get her in in time.
"Grease," the fourth revival of the season, is the worst show in the history of theater and represents an unparalleled assault on Western civilization and its values. - Michael Reidel