he replaced it with Last Stand, then he signed up for Expendables 2, then he signed up for The Tomb, then he signed up for Ten and he has The Unknown Soldier waiting in the wings.
CMCHO will likely not get IPOed until there is some new news that the project is actually going to move forward (because at this point it doesnt look like it is going to be made, or made anytime soon) There is no reason to IPO it anytime soon since there is a likely chance that it is now a dead project or on the backburner.