Flashfans.org has official still images from the episode.
Just to warn people, there are major spoilers swirling around online about this episode due to the Australian teaser clip. You might want to be careful about what you look at if you’re keen to avoid them. (I specifically decided to avoid the teaser when I heard it revealed something major, but somebody on the net spoiled it for me anyway.)
The Collider has a surprisingly candid interview with showrunner Andrew Kreisberg and Danielle Panabaker, and it actually contains a few major spoilers. Perhaps most of note to readers here is what they say about Wally West, but there’s also discussion of the most recent episode and things which will appear in episodes to come.
Are you looking forward to the debut of Wally? Let us know in the comments!