I'm kinda anxious about it as well. Even in Furious 7, there were some sketchy looking shots of CGI Walker.
Just out of curiosity, would you rather Tarkin be recast, or be CGI?

I could see that. Or Colm Feore maybe. Either way, I'd rather a recast than full CG Tarkin.
EDIT: Lobo, you read my mind.![]()

They already recast Tarkin once.
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Kind of worried about Tarkin being CGI. Usually it looks really jarring (looking at you Jeff Bridges in Tron: Legacy) but it's been pulled off well too (Furious 7).
Damn, didn't realize just how good Wayne Pygram looked. The shot in ROTS was very brief.
What they did with Michael Douglas at the beginning of Ant-Man was nothing short of amazing. That said, Pygram is a perfectly acceptable alternative.
Just cast Mikkelsen as Vader and destroy the Internet.

#10TMZ has a bunch of set photos from Rogue One.
I spy Felicity Jones in photo #10 & #11.