In a new twist, Capcom is technically available to purchase. While they have been a third party company since the beginning, stockholders voted to end their takeover defense, which has been in place since 2008. Essentially, that means their stock is available to be purchased by any big company, and should someone want, they can purchase a 51% share stake and get console exclusivity for their various IP. While that doesn't mean someone will pay the hefty amount of money required for a takeover, it is now a very real possibility.
Anyone who chooses to invest such a large sum of money would gain some extremely prominent franchises. Capcom controls Ace Attorney, Resident Evil, Monster Hunter, Street Fighter, Mega Man, and many more.
Personally, Nintendo would seem like the best fit, given they already exclusively get Ace Attorney games, the recent Monster Hunter games, and are seemingly single handily keeping Mega Man relevant thanks to Smash Bros. It would also give Nintendo more exclusive content, and thus more yearly content to help fill out their thin release schedule. This is really the one way Nintendo can get a leg up on the rest of the industry.
Then again, others wouldn't be so willing to let Nintendo simply get a majority ownership, and Nintendo may not wish to pony up the cash to do so. Microsoft certainly has the most cash to make it happen. Time will tell who, if anyone, can lock down Capcom for exclusive content.