I don't think so.
Metroid has always been unique and only sells to Metroid fans. The only way that it would sell better is if it became a run and gun action FPS that focused most of it's gameplay on an extensive online portion in the game. You could level up your weapons and everything.
Proud member of the SONIC SUPPORT SQUAD
Tag "Sorry man. Someone pissed in my Wheaties."
"There are like ten games a year that sell over a million units." High Voltage CEO - Eric Nofsinger