Take a good long look at what's already been accomplished.
Yes, Plan Z is going to take a while, but not three or four times a regular studio, I think.
A regular studio has a real budget and specific designers, true, but more "Professional?" We've got some good people involved, both amateur and professional, working on various things. What we have is something I haven't seen in any game before.
A game *Community* set up *before* the game was started, giving Plan Z a huge pool of people and talents to draw from. And the Devs for Plan Z are doing a good job of doing just that.
Take a good long read through the threads and look at what's already been done, including a lot of things that either weren't feasible for CoH, or weren't possible due to the game engine, NCSoftcore wouldn't fund it, or for whatever reason, that are on the Plan Z "We're going to attempt to do this" list on a dozen different threads.
Hell, what I've seen on Plan Z from the forums has done something that nothing else has done in nearly 20 years: Gotten *me* off my butt to get involved. ;]
Whether getting me involved was a *good* thing or a *bad* thing, well, that's for others to decide. ;]
2cp. ;]