i figure it would take place AFTER metroid fusion.
Just so they could re-use the crappy new suit design >.> i hate it.
anyway, i haven't heard *ANYTHING* bout a metroid game called "zero mission" not one tiny even rumor, where did you get that information.
My favorite metroid games, are in order.
Metroid Prime, Super Metroid(3), Metroid Fusion(4), Metroid 2, original metroid (1)
I honestly disliked the original metroid also, and i enjoy metroid 2 becuase it was one of my very first games =).
Metroid prime seems much more like a metroid than metroid fusion did, both are AMAZING games however. (I turned off the "hint" system in prime, it made it too easy)
On a related note: I have beat metroid fusion twice in the last 2 days, something about metroid games... just as fun to play through again, and again.. (this was my 10th time through fusion)
New Mario Kart? that might be.. interesting, but i also haven't heard anything of that (outside of double dash) and i personally don't care for it much.