Konami is pulling a bunch of games from the App Store in Japan http://www.kotaku.com.au/2015/08/konami-is-pulling-31-mobile-gaming-apps-in-japan/ There is no news on the International versions
Even if they don't support IOS9, why still would they pull them. I'd hate to see them try to make the games freemium.
So investing in porting the games to the new mobile OS is not a thing this year. But clubs are. Cool!
Most likely, they just don't want to support paid apps anymore and want to transition the company completely to the freemium model. The only reason MGSV is even going to be released is because they have sunk so much money into it. I would not expect Konami to make another AAA title, unless it is already under development.