In a report from French site Gameblog that was subsequently supported by Eurogamer, Konami has no plans in the works for any future console or PC titles beyond the upcoming Pro Evolution Soccer 2016. This comes on the heels of the departure of Konami's worldwide head of technology Julien Merceron. Merceron reportedly left because Konami is not planning to utilize the Fox Engine, a truly impressive piece of technology that powers Metal Gear Solid V: The Phantom Pain. The report also states that the Metal Gear title confirmed by Konami earlier this year is not in any phase of development. The only other game in production at this time appears to be Metal Gear Online.
This seems to be part of Konami's shift toward mobile and pachinko gambling machines. Many point toward the success of mobile titles like Dragon Collection for the shift, which saw a bigger return on investment than previous AAA games.
Keep in mind that this is not publicly confirmed by Konami and isn't likely to be any time soon. However, if accurate, it is a colossal shame to see the Fox Engine languish unused. Given the recent fallout between Hideo Kojima and Konami, and the reports of harsh working conditions for the development branch of Konami, it wouldn't be surprising if the rumor was true.