One of the recent videos has given us a glimpse of Michael Burnham in a Vulcan costume. The costume fits in well with the movie-era Vulcan designs we've seen like T'Lar's costume from Star Trek III. The context of the images seems to be Sarek delivering Burnham to the USS Shenzhou.
The same video shows a young Burnham, presumably on Vulcan, it what looks like one of the learning pods from Star Trek (2009).
We've also seen a glimpse of James Frain's Sarek makeup being applied.
Reviews of the new series have been embargoed until the 25th but the comments on social media from those who were at last night's premiere have me pretty excited for Discovery!