I picked one up for Gears 4, but purchased mine the week prior to the game dropping. That Halo 5/MCC 500gb S bundle was $349 CAD at that time at all retailers.
I don't know what caused the $30 price bump the following week but $379 is the cost now for that particular bundle or for any 500gb bundle. The 1tb bundles right now are all $449. At the time I made my purchase, EB had a promo of Fallout 4 being included with console purchase, Bestbuy had $15 off an additional controller with console purchase and Microsoft's stores/website included your choice of a game (ie. Watchdogs, Just Dance...), as well as the $15 controller discount.
I feel at best you might see an extra game bundled in, with the 1tb console drop to like $429, maybe... and perhaps the 500gb console drop back down to $349. Which by all means may not be much of a discount at all especially considering what games you might be after and what unknown extra game gets bundled in, if that. Exclusive wise for example, Sunset Overdrive is $10 right now at The Source, Quantum Break is $49 at EB/Best Buy.