Oh, no doubt. They are committed to the mechanic and the interest of the masses. If 343i realizes that going after the masses is no longer a viable strategy for the long term performance of Halo and is influenced by the success of DOOM, then maybe there's a chance, but I would not bet on it. Otherwise I'm sure they have no problem keeping in Sprint when the game can still be fun and they can pull the sales numbers that 4 and 5 achieved.
I would not mind them keep sprint, or whatever other mechanic, IF the reason for the inclusion of that mechanic came from the right place and everything feels like a well thought out and fun package as a result. In the Spartan Abilities GDC talk, the designer said that they included sprint because in 2015, people expect to have it. I am sure that there are a host of other reasons as well. But therein lies the problem.
You brought up Doom, which is a prime example of a game designed from the ground up to be fun and cohesive. Watch the Noclip documentary for Doom, or the Quakecon talks by the team. Doom included whatever mechanic was good for the game, no matter if its "oldschool" or "modern". In contrast, i don´t get the feeling that 343 went for that approach. Not in Halo 4 or 5.
That´s whats bothering me about this. It feels like the look at other games to see what can work. Everyone does that of course, and that´s okay.
But then again, they thought that including loadouts in Halo 4 was fine, then they moved away from it again. Now, groundpound and spartan charge are being reevaluated. I don´t have the feeling that someone behind the scenes has a cohesive idea, but rather a bunch of people are going with the flow of whatever seems to be okay at the time.
Halo should be more than a leaf in the stream.
Clamber is the best addition H5 made to Halo.
No attack, offense or anything of the sort: why? I am not outright against it or anything like that, i am interested in why you like it.