According to a recent consumer survey, Electronic Arts is considering bringing Dead Space Extraction from the Wii to the Xbox Live Arcade and PlayStation Network platforms. According to the survey, Extraction would be presented in HD and retail for $14.99 while retaining the "guided first-person experience" of the original game.
As well as Extraction, EA is considering another downloadable Dead Space game called Planet Cracker.
Sounds ridiculous, but stranger things have happened. I wouldn't count this rumor out just yet.