As the bike hasn't been introduced yet, Husqvarna themselves won't accept orders or even a deposit. That said, your dealer may have you make a refundable deposit, so you're first in line once they become available.
I did the exact same thing when I ordered my FTR1200 a few years ago. I ordered in June 2018 and paid a deposit in August while the bike was actually only introduced in October. So I ordered blind.