dukefett
Super Freak
Since it's still up for pre-order if they were going to add it, wouldn't they update the product page? Seems silly to not get additional pre-orders and just surprise everyone out of the kindness of their heart. I'd love the extra accessory but wouldn't display it with Thanos anyway.
I'm trying to think of other examples but for the HC Spider-Man they added the instant kill eyes that weren't in the promo photos or announced previously at all. I do think they'd send an update for this if they added something as big as the Gauntlet. They sent updates about the Hulkbuster when they changed things to fit the Mk 43 for instance. I'm sure there's other examples I don't know about out there.