Where exactly are the snack carts in future world?
Carts are along major walkways mostly. Depending on crowds they can pop up anywhere.
There’s a “permanent” coffe/latte/snack kiosk at Showcase plaza, just as you turn toward Mexico. I’ve frequently seen carts on/near the bridge between FW and WS. I have also seen a coffee cart near Test Track.
New flavored popcorn by Imagination. Buffalo blue cheese was pretty good, but the taste got old quick. Don’t get it if no one else in your party is going to want any…