Virgin Trains gave a presentation to the Clark County Commission. It provides a few extra details on the Vegas station.
https://clark.granicus.com/MediaPlay...7&clip_id=6517
Here is the link to the meeting video. Virgin Trains is item 80 to skip to that point.
I also found a link to the slide deck they used as well also on Clark County Commission site. I found the route map interesting. The corridor between Victorville and Palmdale was already known. As was getting from Palmdale down to Union Station. What is new is also a path directly from Victorville to Union Station. Looks like they are looking into alternatives since CHSR is a long way off at best. The trains are also noted as being fully electric. Looking forward to see what the trainsets will be.