Forgive me if this has been asked and answered, but is SE 'saving' room for each of the 'Legacy' Worlds to have room for brand new ARR players and their new characters?

I played 1.0 so my character is 'Locked' to a 'Legacy' World...but my husband will be joining me as a brand new player in ARR. Yay Is there anyway for me 'save' him a spot or is there something in place that assures there will be room for brand new players on 'Legacy Worlds'?

I would really hate to have to choose between staying with my 1.0 friends and keeping my 1.0 character progress or starting all over with my husband in a brand new world, simply because room wasn't saved for new characters on 'Legacy' worlds.