Yes, your account will be a carbon copy of your current Steem account, with all tokens intact, just renamed to whatever.. "STEEMFU", but to continue using your new tokens on the new, forked chain, the old STEEM tokens need to be burned to null, as a transfer of value rather than a double up of tokens. Basically we'd be burning our old account to acquire a "new" one where we left off on Steem.