Board Thread:Metal Gear Solid V/@comment-188.245.153.38-20151218192212/@comment-3116033-20151219104137

The Fox Engine was developed under Konami (as back then Kojima Production was under it), so the rights remained to Konami, just like the rights on the Metal Gear brand. So no, neither Kojima or the new Kojima Production have the rights for the Fox Engine. Legally speaking, the only way they could use it on a future game is under Komani's licence/approval. And after all that mess with Kojima, I doubt will ever happen.