I haven't actually tried the Dualsense, but my guess is that the "next" big thing is gyro-assisted aiming which has been popular since the 3DS (Ocarina of Time 3D) and Wii U (Splatoon) with PC borrowing it as well. The Dualsense is good as it can support that feature, but it isn't doing anything that the Dualshock 4 (The Last of Us 2) didn't... At least nothing that I expect to catch on.
On that note, there is definitely potential for more precise HD rumble to produce unique experiences and I'd say that the adaptive triggers have mountains of potential but I don't see it being done by Sony or by other studios. (I think the PS5 controller will go far on PC though for some smaller games)
Gyro-assisted aiming is another story since aiming is ubiquitous, 3D Mario has had it for almost two decades and dual analog is not the best on its own. That's a case that can also be a harmless option with ease but also transform the experience.