In terms of aether your body can contain/use, yes. If you want to give a good example, back in 1.x Teleport required the use of Anima, which you could only have 100 of a time, with 6 being restored daily (it took more than 6 to teleport). As we know, this was dropped in ARR (after the Calamity, taking us from 7/14 to 8/14). If we take that as canon for how soul density can effect things, then how "complete" you are DOES effect how much aether you can use and contain.