Hello!
Yes, you can withdraw your prize in any cryptocurrency that is available on the BTCNEXT broker.

Hi there I have no clue why youre the one replying to ky inquiry? Are you part of the team, actually I expected OP to answer this not a random user here. Sorry
Hello!
Yes, each person who open a LIVE(Not DEMO) account will receive real $1,000.

I dont know if Im gonna believe this or what. Your sound funny, how come a trading contest will actually credited real money and not demo funds? Do you think we can believe that statement out of you? If that is real then this thread already been flooded by participants for confirmation.
OP still wanted a valid answer from you, hope I can have some good response.
Real money (that can't be withdrawn) rather than demo actually makes some sense, but I am not sure how trustworthy this is.
I guess it's trading competition with prizes for 1st, 2nd and 3rd best traders, and the exchange provides "free" real $1000 for each trading participant.
Registration should be closed by now.