Thank you God/Adhesive,
It will be fantastic to fight giant robots that don't take a ridiculous amount of hits, fly much too fucking fast for me to target, and require almost mathematical knowledge of every part in order to create my own mech to match my opponents, and have better controls...
Bollocks, they're still sure as hell planning on it, they just don't want to risk it being leaked beforehand so they're just denying it.
If not MW3, then definitely some delicious (in the loosest sense of the word) new IP.
Iron Man, probably. You can debate on how Crysis is SO MUCH more realistic and feasible and what have you, but they're both as implausible as each other.
So in that respect, Iron Man would probably win.
There's absolutely no justification to pirate this in the slightest.
I think the main excuse is 'well i'll try it, and if i like what i see i might go and buy the game'.
That's like eating a cake because some dick stole it from the kitchen, and if you liked it enough you MIGHT go 'eh, sure...