They want to hear what you can do, how you are at your best.
But get rational in your thinking about all this - it’s a topic which is always mixed together with strong measures of fantasy, childhood wishes and dreams, parental pressure and peer expectations and a lot of other psychological baggage, but the bottom line is: it’s beyond risky to plan a future based solely on piano performance expertise.
Giving up the chance at a college education to play an instrument: Is it rational for anyone to make a bet like that?
And, is it even necessary? Is your only path to becoming the best player you can be, with the imprint of an elite music school?