The Sonic Movie 2 is set to enter production in March 2021 and is codenamed Emerald Hill - My Nintendo News

Documents found in a new filing on the Director’s Guild of Canada website have revealed that the Sonic the Hedgehog Movie 2 is due to enter production in March 2021 and is codenamed Emerald Hill.

First Details On Sonic The Hedgehog Movie Sequel Reportedly Revealed

New Sonic Movie 2 Emerald Hill French TV Spot And New Renders Revealed !

Patch notes for Mortal Kombat 11's November update on Nintendo Switch - My Nintendo News

Shadow the Hedgehog/History and appearances, Sonic Wiki Zone

Sonic 2 - codenamed Emerald Hill - set to enter production March 2021 - General News - NintendoReporters

Sonic the Hedgehog 2 Director Confirms Which Emerald Appears in the Trailer

Sonic Movie 2 production details emerges in new filming documents - Tails' Channel

News - November, 2020

Another Sonic Movie sequel production sign allegedly found in an environmental centre - Tails' Channel

News - November, 2020

The Sonic Movie 2 is set to enter production in March 2021 and is codenamed Emerald Hill - My Nintendo News

Sonic the Hedgehog 2 Director Confirms Which Emerald Appears in the Trailer

Sonic 2 - codenamed Emerald Hill - set to enter production March 2021 - General News - NintendoReporters

Sonic Mania, Sonic Wiki Zone

Sonic Adventure, Ultimate Pop Culture Wiki