Thanks! Posting a link to the source is a lot more useful than just hearsay.
As for this link though… This is a bit weird. Because it seems like it’s a stream of numerous other events from different booths in Anime Japan, and is not officially sponsored by any of the organizers. As such it provides absolutely NO info as to what booth they’re going to stream this Rewrite thing. Well, since it’s available for streaming, looks like me going to the actual event would be counter-productive