During the Sonic Central event today, Sega announced pretty much everything it was expected to announce (including Sonic Colors: Ultimate), in one form or another. Notably, it announced Sonic Origins, a new collection (likely the aforementioned French listing for Sonic Collection) including Sonic the Hedgehog 1, 2, 3, & Knuckles, and Sonic CD that will incorporate “added content and features.” Release date and platforms were not specified, but the game will come to “modern platforms,” which pretty definitely includes Nintendo Switch. More information will come later this year.
Sonic Origins marks the first time in around a decade that Sega has re-released Sonic the Hedgehog 3 and Sonic & Knuckles. It is believed that licensing issues with the soundtrack had made these games difficult to re-release, but those issues have evidently been resolved. Alternatively, perhaps the problematic music will be replaced with new music.
The rest of the games in Sonic Origins have been re-released in various places, like mobile devices, but they’re all renowned and high-quality releases. So it never hurts to have them in yet one more form. How much value this Sonic Origins collection has will likely depend on what the “added content and features” turns out to be, but having fresh access to Sonic the Hedgehog 3 and Sonic & Knuckles will be pretty sweet in any case.