Loopring technologies is their partner on it - apparently they have made a way to remove Eth gas fees and can provide an interface that will allow mass adoption to happen.
For gamestop, I think the NFT plan will be digital assets like in game costumes and stuff + earning rewards for playing games that can be spent in gamestop.
The holy grail for all of this is of course, digital pre-owned. However, I have a hard time believing the publishers and developers of this world would accept that and even if they did, they would just knock up their own stores to cut gamestop out the loop.
That said, one of the NFT benefits is that owners get paid whenever a product gets resold so perhaps Gamestop have offered to cut in the platform holders and publishers this time. It would be a monumental shift and that really would make the share price go gonzo but I doubt that’ll happen.