Schumann: Symphonic Etudes
Alkan: Allegretto Alla Barbaresca (from concerto for solo piano) op 39 no 10
Liszt: Venezia e Napoli
Liszt/Gounod: Vals a L'opera Faust (MAYBE... I will change the transcription if rep becomes too much to handle)
Chopin: 3rd Ballade (also replaceable if necessary)
Chopin: Op 27 Nocturnes
Liszt: Concerto no 2 in A
As I said this is not everything (not nearly),
OMG!

this would do bad to one's stomach and blood circulation! if you asked me whether or not i can learn and master all of them up to a performing standard, in just a single year, i'd give you a quick answer: NO WAY.
well...but then again, i dont know you--you might be one of the very fantastic pianists who learn pieces extremely fast. if you have great technique, infallible memory, and are
familar/comfortable with the musical language of all these composers, then you have a chance. i cant judge.
STILL, for a competition, i believe it is unwise to play this much new repertoire, even when you cancel either the schumann or alkan piece. do you have any learnt pieces in your repertoire that fit the requirement? if so, why wont u bring them back, instead of trying to struggle thru something you could actually avoid? all the time that would otherwise be spent on such struggle can be used for better purposes.
ok, here is a small note, nonetheless valuable: feeling good and confident before a competition is important. one major reason of having a healthy confidence is from your knowing the fact that you learn your pieces quite thoroughly, isn't it? what good is it to you if you could only master say 85% of all the pieces you listed on the day of your competition? also, competition is much about showing what we can do best. chances of revealing our weaknesses should be pressed down to a minimum. high ranked jury is fickle by nature, we are deemed to be careful when choosing pieces for ourselves.
have you talked to your teacher? btw, i am very interested to know what you finally choose. whatever, whichever, however, choose wisely.
just my two cents.
all the very best, tds