Your account's vital statistics will be copied, with appropriate and necessary conversions, from the state it was in as at last night, if you want, just say you want in.
Or, you can wait until later, pay for an account (this depends on when there is an exchange method to get Juice), or get a free, freemium account that is like a not paid for WoW account (you won't be able to have it receive delegated Stake, and it will have more restrictions than a free Steem account).
@elfspice I'm in
Edit : and what about delegated/leased steem power because I have them both..