Character appearance change is planned for beta phase 4.
Source, but I'm not sure if you can see it if you aren't in the beta.
Hvinire, Community Rep, Beta forums Wrote:[Q:] Characters being transferred from Version 1.0 will get to make their characters over one time, will that be during early access or Beta Phase 4?
[A:] This is scheduled for phase 4.
Source, but I'm not sure if you can see it if you aren't in the beta.