Doing a single character as completely CGI seems very expensive for a live-action TV series, plus there would be a lot of extra work in order to make them feel like they fit in without being too gimmicky. I do think that if they want to go the CGI character root, then they should just make an animated series. But that's just my preference.
Commander Austin Harris, First Officer, Deep Space Nine (by FltCpt. Bossco)
8.01 - Darkest Before Dawn
(Chapter 8 added, 12/09/2015)