Yeah but This is SEGA, it's probably not happening anytime soon
I hope it won't happen. Because, making a movie based on the video game always end up the worst. Look it up...
I'd also rather not see it happen at all. A Sonic movie won't be what Sonic is to me, which is basically something revolving around Planet Mobius and the Freedom Fighters. Not strictly SatAM, but something in its spirit. That's what Sonic was to me growing up; not just in cartoons or comics but in storybooks, toys/merchandise, beginner novels, my How to Draw Sonic the Hedgehog book, and even the Genesis games. While playing them, I was thinking in terms of a SatAM/Archie-esque universe. My sister and I remember being really excited to see those characters appearing in Spinball.
I remember being a little kid and having dreams about going to see a Sonic movie that was excellent, and based in SatAM/Archie while still going beyond it. I remember being really disappointed when Sonic Underground came out because there finally was another animated series, but it wasn't Sonic as I understood it. I was a little confused by the OVA, but didn't hate it, I just regarded it as an "alternate universe" as I was used to that in superhero comics. By the time Sonic X rolled around, I wasn't even disappointed, I just didn't care. I didn't watch it, and likewise, I don't watch Sonic Boom. I harbor no ill feelings toward it however, nor to the current games. I'm mostly indifferent. But to me a big-budget movie that you go to a theater to see is a big deal. Even if I never watched the film, but I went to a movie theater and saw no trace of Bunnie, Antoine, Sally, and Rotor on the poster, I'd find it depressing. The Sonic movie finally came, but it wasn't the Sonic movie the little kid in me dreamed of seeing. I'm fine with the direction Sega is taking with Sonic Boom and their new games, but for me, a Sonic movie would be a pretty crushing blow and I'd rather not see it happen.