Hi, I'm a longtime lurker, first time poster so here it goes. Replying to your question Sonora about what Balanchine dancers to invite back and coach thier original roles here is my list,
Maria Tallchief-Firebird, Sylvia Pas De deux and Eurydice in Orpheus
Allegra Kent-Bukagu, La Sonambula and staging a revival of The Seven Deadly Sins
Melissa Hayden- Stars and Stripes
Violette Verdy-La Source and Emeralds
Patricia McBride-Who Cares, Divertimento from Baiser De La Fee, and Voices of Spring from Vienna Waltzes
Edward Villella-Oberan, Rubies and Harlequinade
Suzanne Farrell- Diamonds, Chaconne, and Mozartiana
And they should bring back Don Quixote too, if not the full length ballet then maybe an abridged version. You know sort of like Highlights of Don Quixote with Marcela's solo from Act 1, a couple of the Act 2 devirtisments and all of Dulcinea's dances from Act 3. It of course would have to be staged by the Divine Miss Farrell herself. That would be a perfect world!