From a parallel discussion some days ago I assume there won't be updates to the character itself and how face and body is changed. But maybe they could add options to preselect collectibles available to your account. In this way we could check hair color on some crown hair styles etc. as this can change depending on your selection.
This is my number one request. The options are so limited and often poor which explains the similarity of characters all over Tamriel. Modders provided some wonderful additional options on nexus---hair, eyes, eyebrows. And surely we should be able to have better facial option sliders for variety and personality.
When you're creating a character you intend to be a vamp or use a skin or personality on, it can make such a massive difference to appearance. I'd love to have a pre-tutorial preview mode where you have access to your collectibles and a vamp effect to see them in game lighting, that let's you skip between that and creation til you're happy.
I guess they'll never do it tho because at the moment the only solution is buying an appearance change token, so they won't want to lose money!