I've predicted that the Hamilton Tiger-Cats will get to host the 2016 Grey Cup on this blog. The game hasn't been here since 1996 and before that 1972.
When will we find out the location of the 2016 game? The location for next year's game in Winnipeg, was announced earlier this year on March 24th. So expect only a few more months for the 2016 announcement. Ottawa might also be a possibility, but I'm thinking that 2017 might be a better possibility for them.
Although a question is would the league have back to back games in Ontario? With two new stadiums and the fact that Ottawa and Hamilton aren't super close, I don't think that's a big deal.