Post-Super Genesis Wave timeline

The Post-Super Genesis Wave World is a universe that appears in the Sonic the Hedgehog comic series and its spin-off comics published by Archie Comics. A universe created after the events of When Worlds Collide, this world was formed after an attempt at Chaos Control performed by Sonic the Hedgehog (as Super Sonic) failed thanks to Dr. Eggman during a Super Genesis Wave. This universe essentially marks a reboot within the Sonic the Hedgehog comic series, as most concepts (mostly made by Ken Penders due to a lawsuit) were removed entirely from the new world.

Description
The Post-Super Genesis Wave World is a world that is much similar to the video games from the Sonic the Hedgehog series. With the exception of Sonic Unleashed, Sonic Lost World, and Sonic Chronicles: The Dark Brotherhood, every mainstream Sonic the Hedgehog video game (such as Sonic Colors and Shadow the Hedgehog) has occurred in the comic universe. As such, events from the games still hold effect in the world. For example, the Black Arms had decided to return back to Sonic's World after Black Doom's death, which occurred during the events of Shadow the Hedgehog.

However, evidence shows that the previous reality, the Prime Zone, has occurred in the new reality, as well. Several events, such as the Sonic Adventure loose adaptation in the comic series and Eggman's overthrow on the Kingdom of Acorn, have apparently occurred in a fashion that fits in the new reality (i.e. during Eggman's coup, he was clothed and designed as his classic self from the video game Sonic the Hedgehog (1991)). With this, the new reality is not technically a reboot, but essentially a soft refresh on the world of Sonic.

The new reality also creates characters, locations, objects, etc. that never existed in the former life, such as Axel the Water Buffalo and Eclipse the Darkling. The world can also alter the appearance of a character and area drastically; for example, the majority of the Knothole Freedom Fighters have received makeovers from their previous look. Characters such as Muttski were also transformed into Mobians when they were originally Mobinis.

Likewise, creations in the former life were removed from the new reality entirely. Creations such as Geoffrey St. John and Scourge the Hedgehog have been removed from the universe mostly because of the lawsuit that occurred between Archie Comics and Ken Penders. For a whole list on which creations were removed from the comics, see here. Said creations are most likely not to return in the comic series, and, as such, creations created by any other writer minus Ian Flynn and Tracy Yardley have been written out of the comics for the time being.