The odd thing about Nintendo is, usually, they don't announce a game a LONG way in advance. Usually, they only announce a game a few months from when it actually releases. Not always, but often. So...I'd guess Metroid 4 will be out sometime by next summer, anyway. Maybe before, who knows.
Many 3D Zelda 1st release titles would be the counter argument. Usually a year or two between announcement and release.
Yeah, I thought about that, too. But a lot of the time, some of those "announcements" were more-or-less tech demos. Or they didn't give us a title or anything, and just said that a Zelda title was coming "soon".
The announcements of Metroid Prime 4 and the new mainline Pokemon game (which didn't even get a true teaser) were Nintendo's way of showing future investment. They might not be coming SOON, but their announcement showed a commitment to the platform beyond the few second phase titles they had shown(Kirby, Yoshi), or could be safely assumed (Smash Bros) coming within the next year or so.
Well...Metroid doesn't seem to be the system seller that Zelda or Pokemon is (maybe I'm wrong, though). It feels a little...off if it's much more than maybe a year out. Especially since they're getting Xenoblade 2 out THIS year (seems like THAT might be a bit of a rush, but we'll see, and that's a completely different tangent). And that seems to me like it'd be a much "bigger" game to program than a Metroid Prime title (and I could be VERY wrong about that, depending on what they're doing).
Edited by ZakuConvoy, 23 November 2017 - 08:09 PM.