I doubt John Woo would personally take the reins of a project like this. In any case, if the Tomb Raider, Resident Evil and Final Fantasy movies are any indication of things, I won't go see it even if it does reach fruition.
How is that possible? Metroid is owned by Nintendo, they would never whore out a beloved franchise like that. Well, except for those shitty CDi Zelda games... :/