A new blockbuster Mars movie is in the making...
If successful, Terminator 3 could prompt Hollywood to finalize a deal to produce a Total Recall sequel (with the original cast, minus Richter, Cohagen & Kuato of course)...The brand new online trailer for T3 looks potentially interesting and not so redundant of T2, by the way:
http://www.terminator3.com/domestictrailer
As Hollywood hasn't had a single Mars-related box office success since the original came out in 1990, I think it might be nice to have Total Recall revisited while there's an unprecedented 7 probes or orbiters on or near Mars.