I've been keeping my eye on this for some time now. Dark Crystal was one of my favorite movies as a kid (along with Labyrinth), so I'm excited about a sequel, yet a little bit pescimistic at the same time.
The story so far doesn't sound overly original, but at least my beloved skeksi's make a return. The one with the pathetic whimper had better be back!
As for the use of CGI, I've got pretty much the same opinion as Vega. It's overused, and often looks like a cheap way out of achieving effects. It is getting better in more recent films, but I still miss all that funny 80's puppetry. I hope it's kept to a minimum in this new movie, but I'm quite doubtful. It should be used for scenery and nothing more.
I'll never get over how creepy these things are. Especially that emperor.