A rumour has been spreading over the internet that Retro Studios, developer of the fantastic Metroid Prime trilogy and Donkey Kong Country Returns, will be working on a Star Fox/ Metroid cross over game for the upcoming Wii U titled Star Fox - Metroid: Fusion Saga. This is a rumour, however, that Nintendo of America has denied.
This rumour originated from the Paul Gate Network, whom claimed that Retro Studios were looking to make a new Star Fox game as well as a third-person sci-fi action game potentially utilising a new IP, however Nintendo suggested to combine the two concepts for the Wii U, throwing intergalactic bounty-hunter Samus Aran into the mix. This game will, apparently, feature a mix of first-person action with Samus, third-person gameplay with Fox and then some sort of flight mode involving both characters.
I for one can't see this happening. The two game series have always been of two very different styles which I cannot see merging. Metroid has dark and atmospheric environments with a challenging helping of exploration and brutally difficult boss battles. Star Fox has always had a faced-paced, somewhat light-hearted and almost arcadey gameplay, aside from Star Fox Adventures, which was hardly an intensive gaming experience.
The only way I can see this working is if the story elements of both series were watered down and the gameplay was simplified so that even a child could play. If the game is indeed going to be an early Wii U game then it could be expected to contain a wealth of gimmicks to play off the Wii U's crazy controller. Star Fox's reputation has not been worth worrying about for some time now, but after Metroid: Other M a hypothetical game like the one described above would run the Metroid series into the ground, and I personally do not want to see that. No one ever does, just look at Link's Crossbow Training.
<Source: Digital Spy>