I feel like a console Hero Factory game would've been a blend of the BIONICLE Heroes gameplay with the 3rd person shooting (maybe with a more pulled out camera), but with a bit more of the classic LEGO video game gameplay sprinkled in, like unlocking different characters, melee attack options, and travelling to diverse worlds that have their own special gimmicks to differentiate from the shooting, which plagued Heroes for how repetitive it got. Some of the RPG elements that Heroes had could've been expanded upon, like upgrading your various heroes with different hero cores that enabled them special abilities like more damage or extra shield powers, on top of whatever "elemental" powers the team members would've had. You start the game off with the 1.0 2010 designs and as you upgrade you go into their 2.0 and idiotic animal designs leading up to their breakout builds. And maybe throw in a mech level just for the heck of it.
This would've been the best thing about Hero Factory to be honest.