What they need to do is just give up. End the series in one final game using all of the elements from everyone's favorite Sonic games (all being the old 2D ones), but in 3D. No stupid gimmicks, no glitchy cameras or controls, just good ole' straightforward Sonic games where you can run as fast as you can anywhere you want, and still have to explore the worlds t find the Chaos Emeralds.
Seriously, Black Knight? C'mon, just let me RUN. I don't want a frigging sword or on-the-rails game!