Triple U-Turn would be great, my only guess for why they haven't is because usually teams that are left used all their U-Turns up by Leg 9 or 10. Bring back a surprise Yield maybe? (Even though that probably isn't as effective as a UTurn.) I'd love for them to have 3 UTurns, 2 express passes, and an intersection (with an actual challenge that makes intersecting useful or troublesome, not something lame like "go bungee jump together"...why are we even intersected if we're just doing something I could have done by myself?...)
Would be amazing to see more off-the-beaten path islands, like Trinidad & Tobago or even Bora Bora again (those first two legs were BEAUTIFUL last season.)