Thanks everyone. I have some responses and then a further tentative program.
Have you heard Medtner before? Try listening to some of the Sonatas or Fairy Tales. They would be good for your large romantic piece.
The last set of Scriabin preludes is very abstract. Op. 74 I think. They are quite short so you could easily play all of them.
I've heard Medtner, and his music is interesting and deserves playing, but I, myself, am not too fond of the music. It has grown on me, but not enough. It feels a bit circuitous and not quite directional.
The Scriabin is interesting music, but I don't too much like the Op. 74 set. Thanks for the suggestions.

True, maybe Medtner Sonata-Skazka Op. 25/1? It's not too long, it's beautiful and effective
.
Once again, interesting, but not quite my style of biscuits. I like it, surely, but not enough.
Cheers!
(For this last one, I'll put my comments within, bolded and italicized so as to differentiate it. Thanks for understanding

)
How about Bartok's last etude, the op. 18 no. 3? Short, abstract, effective...and though difficult, it won't kill you like op. 18 no. 1 kills me (small hands
). How 'bout it?
(But really, you'd definitely not be at a loss with a good Debussy prelude
).
I like the Op. 18 set, particularly the third. The first is pretty much impossible in my opinion, as I can only stretch an 11th/play a white-white 10th. Lots of ... "grr" at Bartok's dissonant best.
I can suggest it. I've read that Bartok's etudes are considered tremendous by many great pianists.
If not, though, I'll just choose a prelude I like.
Why no 4th ballade, oh teacher? And on Chopin's Scherzi, the 1st is actually the only one I don't really like - but that's pointless to the inquiry.
What do you know about the Bartok Rhapsody, Op. 1? I've not heard it, but I've heard a great deal about it, such that it was later rewritten for piano and orchestra by Bartok himself. How long is it?
The fourth ballade would be difficult to the point of preclusion, I think. Great piece, certainly, without a single doubt. In case it was assumed otherwise, I'm a physics/Pre-Med Major, so I am not a music major with a lot of stuff on my plate, so I want to choose things that will fit. I actually think that the 1st ballade will be my choice. If I work hard, I could do it well, my teacher suggested it, she knows more about my limitations than I do, and it should be really good work for my chord execution/wrist technique.
So, you've got the Bach-Liszt/Haydn first half, and Schumann (any you choose will be delightful!) and Chopin Etudes nearly set in the second half...how about going away from Chopin, and into something less overtly romantic, like Busoni's 1st Sonatina? That it's rarely played could be a bonus, even if something oft played is not a concern. It adds variety to the program, and offers a nice compliment to your opening Bach-Liszt P&F...Plus, it's a unique sound-world not often experienced, but sure to intrigue.
A Medtner is also a nice suggestion. The Sonata reminiscenza, Op. 38 No. 1 which Gilels often played is the one with which I'm most familiar. Medtner would make the Noveletten happy.
I know, not Op. 10-2 for good reason, but pertaining to the Liszt etudes, Feux Follets is the most intimidating and I'd think 10-2 is the best to prepare. But yes, 25-12 is a great choice and will help prepare you if this preparation is possible. I love 25-11 going into 25-12...such a dark progression...like the Scherzo of Mahler's 6th Symphony arriving at the Finale, Boom! what a world (chills). Another chilling possibility I like is the E-flat minor Op. 10-6 proceeding 25-12, in which case you might add third etude to start the set, like 10-5 or 25-1. Really just find what you like!
Feux Follets is a splendidly charming (and ingenious) piece which is enormously difficult and not on my to-do list.
With the Ballade and 25-12, do you think that it would be necessary to study another etude for chord/wrist technique like 25-9? If not, then I'm thinking of 10-4/25-1/25-12 (A good, Major third key change, which is a very powerful transition.)
Might 25-11 be better for my technique than 10-4? 10-4 does work both hands, though. [/i]
Happy choosing, and good luck to your career! 
Dave
Thanks a lot! You've helped my concentrate my thoughts.
Now the tentative program stands as:
Bach-Liszt ... Prelude and Fugue in A minor ... BWV 543 ... 9 Minutes
Haydn ... Sonata (F Major or c#) ...

(Set of Schumann - what order? and perhaps a suggestion of what to go with the two Op. 12 pieces besides the Romanze?)
Schumann ... Romanze in F#
... Aufschwung (f)... Op. 12 No. 2 ... 3 Minutes
... Warum ... Op. 12 No. ? ... ??
Debussy ... Prelude (Perhaps Le Cathedrale Engloutie? I love the feeling of crushing antiquity.) ... Bk. 1
--- Intermission--- (tentative placement)
Chopin ... Ballade in g ... Op. 23 ... 9 minutes?
Chopin ... Etudes (set- see quotation of Furtwaengler post for my thoughts.)
Encore: Schumann Op. 13 No. 1
Depending on how successful the concert is, I might be able to do 2 encores, in which case I'd do a MacDowell Etude before the Schumann, which I learned a year and a half ago and which can be recalled quickly and easily.
Thanks everyone- I'm getting closer. Then, of course, I await my teacher's approval.
(P.S. I have some magnificent recordings with Furtwaengler (sp?) as conductor.)