Without a set platform to date, Project Zwei could very well be a next generation title or at the very least a cross generation release, similar to Bungie's Destiny. After the recent Sony conference in which they unveiled the PlayStation 4, a list of third-party developers and publishers were released.
"Roughly 96 companies worldwide, including duplicates like Bethesda's
North American and Japanese operations – working on something or other for PS4."
Source: Joystiq | Tip: timur72299