the CGI approach is might come-off as more of a low-budget Saturday Morning type show. It's hard to imagine it being used as a 'prime-time' production.
I only used what I found that was adequate for a visual example. While it was not 1080p high definition...
check out these two posts:
Lucasanimation spent 1-2 million on The Clone Wars
series per 22 minute episode they say.
I doubt Paramount/CBS is willing to spend that much but based on the examples on this thread it can look good for less.
If we can get over the facial animation being so realistic (spending the time & $) this medium is adquate for Trek storytelling broadcast in HD or Blu-ray.
and this CG model
looks pretty close to a photo from the set