Im not a big fan of the dragonshout mechanic, so I wouldnt mind not seeing them again
Lol, how do you know? I really don't see how you could "not be a fan of the mechanic" when you nor anyone else outside BGS has ever even used Dragonshouts in a TES game. :confused:
I suspect you mean precedent.
Precedence means something quite different.
And the answer to the question is no, they're not creating a precedent. Dragon Shouts are particular to this story and theres no reason why they should affect future games in TES series IMO.
Also, this^ = Simplest explanation. Reinforced by the fact that Todd and the team purposely like each TES game to be unique and stand on it's own while still existing in the same universe with the same lore and timeline. Each game will have it's own uniqueness, while still being an obvious "upgrade" on old designs.