As far as armors go I think the Hero's Reborn armor, Hero's Return armor (1st one), or the War Machine armor would be good armors to base a new armor on for the movie. I would hope they would not use a direct copy of any of the comic book armors. I would rather see something like the armor of Dr Doom in the upcoming FF movie. It is based on the original armor, but a more modern looking one.
IM needs to settle down with one armor man. seriously, this dude has a different armor for everything then he goes out and designs an armor than CAN do everything. the skin armor(which is his 3rd most powerful next to the thorbuster, and hulk buster) is the coolest one but he only used it briefly(idiot) i would choose the one that went ape shit and came alive, that was the coolst modular IMO. he could carry it around like a back pack, or it could home in on his signal when he pressed the button on his watch. after seeing that one i truly wished i could have one like it