Board Thread:Questions and Answers/@comment-212.35.14.225-20150704132426/@comment-3986699-20150916090958

The fact that he calls it a continuation is enough to say that it's canon until stated otherwise.

You can point out the fact that it's a spinoff title all year long if you'd like, it wouldn't make much of a difference because there is no unwritten rule that states spinoff titles are obligated to be non-canon.

You can point out how Kojima listed off the games in his saga all year long, it won't alter the fact that all that is is listing off games he's personally directed. Of course he doesn't include it in his saga because he didn't direct it, he never once said Rising was non-canon, same for Portable Ops.

Hell you can even bring up the whole "All games in the HD/Legacy Collection are canon." thing if you wanted to sink that low, it still won't mean anything because just because all games in them are canon, doesn't mean all canon games are in them.

As it stands, both Rising and Portable Ops are canon until Kojima or whoever comes in to replace him as the series writer/director says "Portable Ops/Rising are non-canon." anything less is essentially worthless.