Next season's Vanier Cup will be played at Vancouver's renovated B.C. Place Stadium, one day before the Grey Cup game is played on the same site.
An announcement is expected Monday about the Canadian university championship game being promoted as part of the overall Grey Cup festival.
Although a firm date for the Vanier Cup has not been established next year, it is likely to be played on the Friday night and not the Saturday.
After the 2008 Vanier Cup--held in Hamilton the day before the Grey Cup in Montreal--had disappointing attendance, Neate Sager said it was time to "stop dancing around the Obvious Pole" and put the two events together. James Mirtle subsequently agreed, so it only took two years for the higher-ups to listen to this site's founders.
(That last part was tongue-in-cheek.)
This is pretty obviously a good decision, for the reasons mentioned in Neate's linked post and the comments following it. If we spend some time in the wayback machine, we see that the 2007 Vanier Cup (same city and weekend as the Grey Cup) had a "pretty packed house" in terms of media coverage, per James' game-day observations. Which is exactly what you'd expect.
Would putting the games together increase fan attendance at the Vanier, though? That depends on how many football fans would go to both games, I suppose, and others can speak more to Vancouver's appetite for Canadian football. (Like the Vanier Cup game itself, I've rarely been seen outside of Ontario and Quebec.)