Sonic Mania 2 was never in the works because Sega and its devs

The next 2D Sonic has “that old classic Sonic feel” but needed a “current look”.

Sonic Origins developer very unhappy with Sega about state of the game

The Future of Sonic: How SEGA Can Leverage Frontiers' Success

Sonic Mania 2 Is Said to Have Been Scrapped Internally at Sega

Sega and external devs talk about why Sonic Mania 2 never came to fruition – Nintendo Wire

Sonic Origins Dev 'Very Unhappy' With SEGA Over His Part Of The Game

Why Didn't Sonic Mania 2 Happen? - Game Informer

What Happened to Sonic Mania 2? Takashi Iizuka and Christian Whitehead Explain – Sonic City

Sonic Origins mod scrapped, modder says it's 'never coming back

We Have To Do This Now - Sonic Mania Devs On Creating Chaotic Yo-Yo Platformer Penny's Big Breakaway

Sega explains why a Sonic Mania sequel didn't happen

The disrespect to Mania is astonishing : r/SonicTheHedgehog

Sonic Mania Developer Very Unhappy About Origins!

Steam :: Rock, Paper, Shotgun :: Sonic Mania 2 was never in the works because Sega and its devs wanted to move away from pixel art and “make something fresh”