There's a really, really simple way of determining what type of game this new Rainbow 6 is going to be, I'll answer this question with one simple fact.
If the main character(s) run around the game without headgear, while their other teammates wear full headgear, you can bet we're getting another game like Vegas. The 'main' hero is so badass that he doesn't need a helmet or any of that stuff.
Bring back Ding Chavez and the actual tactical nature of Rainbow Six games, not this new-age console bullshit with fast-repelling down the side of a fucking bridge during a colossal rainstorm. Take it down a few notches Michael Bay.
This game will be a major fail.