Yeah I was thinking the same thing, either right before d23 or shortly after d23 is over. Also interestingly enough the sanctum is the only part of the campus that changed in the new concept art (in the picture below). It looks like people are walking into a portal where the sanctum currently is. Also someone pointed out that the path connecting the campus to cars land could be easily re routed to the other side of the sanctum.
View attachment 22492