There is a lot of credibility in this approach. Also toughening the enemies tactics and having Robotnik adapt to his speed in his stratgem would make a nice touch.
Perhaps Antoine for you needs to be the one who shows us what they are fighting for. He is not quick to forget what they are trying to perserve. Knothole sould a bastion of peace and a symbol of what they wish to see for all of Mobius
Hm...I don't know about that. Sonic with out his speed is like Dovhakhin without his shout. Handicap him with limitations somehow? Sure, you could do that. But because he did so...he should be stronger innwardly than ever before.
In EoT I have had to real creative in this aspect for Sonic, since Sonic is now coming in to his prime and now in excellent physical shape as well as developing his "other powers" (which I will keep spoiler free). But since their are more superpowered beings around from Dragons to Demons to Robian Death Machines, grand doomsday weapons, coniving normies that are smart enough to hurt him even in a direct fight, and whole militias in this expanded Mobius it got easier to take him down a notch and add tension to the narrative.











