To give some idea on what the scale difference will look like between IA and Legion miniatures, I thought I'd throw up a couple of comparison shots of some IA minis next to known 32mm scale miniatures. In this instance, miniatures from the various Knight Models range.
Attached is Vader with Cyclops and Batman. You can clearly see, that even with the resin base toppers, the 32mm are much much bigger than poor old Vader, who should tower over both of these. I thought this might prove useful to get a gauge on how the minis will compare once we have them in our hands.