Correct me if I'm wrong, but I was under the assumption that Konami shuttered all their console games to focus on pachinko machines because the profit margins are just too delicious to pass up.
It's interesting to compare them with Capcom, who almost seemed like a sister game company from the NES through PS1 days. Both had a diverse stable of consistently high quality games across a lot of genres. So it's crazy that Konami has practically become a pachinko business while Capcom is still seeing creative and commercial success pretty much on the same strategy they were 20 years ago - nurturing along the old successful franchises and occasionally introducing new IP and spinoffs. It's amazing how comfortable Street Fighter V feels after basically not playing fighting games since the mid 90's.
My take is that Konami seems to have lost a lot of their creative mojo during the industry's creative nadir in the early 00's, when sports and gritty FPS franchises reigned.
They're developing another game with the engine used for MGSV, but you could account that to just trying to recoup costs involved in making that engine. Otherwise I don't know of other console or pc game projects of theirs.
As far as I know there's another MGS spin off they are working on and they continue developing and releasing their annual Pro Evolution Soccer. With the latter my guess is they want a piece of the money-making pie that is Ultimate Team and works so well for EA Sports' FIFA series.
