I don't see how this looks any different from any of the other recent Sonics.
SEGA should be emulating Sonic 1 and 2. Compare the Green Hill Zone in that video to the old Green Hill Zones.
Branching paths!
Hidden items!
Powerups!
Exploration!
Dangerous enemies!
It's not about the sense of speed. It's about exploring a big open world and traversing from point A to point B however you see fit. Until you know the levels really well, if you try to go full speed all the time, you're just going to run into stuff.
A true, classic, 2D Sonic would be very successful. Donkey Kong Country Returns threw out the Kremlings, ruined the animal buddies, has clunky controls for rolling, has obnoxious load times, and is even more linear than the already linear classic DKCs, and it still is a decent hit based just on the strength of the brand and much of the platforming. The Sonic brand was almost as big back in the day, and the platforming was more open-ended.
There would be a huge market for 2D platformers if companies remembered how to make them.
"[Our former customers] are unable to find software which they WANT to play."
"The way to solve this problem lies in how to communicate what kind of games [they CAN play]."
Satoru Iwata, Nintendo President. Only slightly paraphrased.
