Sonic Boom announced, but just what has Sega done to Knuckles

Sonic Boom to encompass video games on Wii U and 3DS, a TV series, and a toy line; launching in 2014.
Sonic Boom: Shattered Crystal is a standalone adventure that shares key characters, events and lore of the Sonic Boom universe with exclusive environments and characters, as well as an emphasis on platforming and puzzles.

Sonic Boom gives Sega's series a new look, two new developers - Polygon

Sonic Frontiers contains a treasure trove of callbacks for fans

Sonic Superstars Coming Fall 2023 - But Why Tho?

After decades in a spin, Sonic's break-out leaves Sega hoping for more

Sega Reveals Sonic Boom Figures To Complement Animated Series And Comic - Game Informer

Sonic Boom game unveiled - video, images

Sega reveals new Sonic Boom sub-franchise and game – Destructoid

Sega Visions - The X Button - Anime News Network

Sonic the Hedgehog 3 Vinyl Figure Sonic and Knuckles 2-Pack - Kidrobot

Sonic Boom had “Crazy” Concept Designs

If Sega had decided to make an new Sonic fighting game this would be the roster. So I made a concept collage of what a Sonic Fighting Game roster would look like

Sega Explains Sonic and Knuckles' New Look - GameSpot