Today, a very intuitive fan by the name of MbKKssTBhz5 managed to find a new domain registration by the name of "Sonic X Shadow Generations", registered back in January 9th, 2024, which adds fuel to the circulating rumour about a possible imminent announcement for a resurgence of the Generations entry in the Sonic franchise. While fans where quick to catch the domain, trying to access it returns a "403 Error", with the message that the access "request [was] blocked".
It's possible that this could be a fan-registered website, however, some people have compared this to the Sonic Superstars leaks that made their rounds a few months ago, with a similar masking system to block any access request to the website, so it could very well be a legitimate website registered by SEGA in preparation for an upcoming announcement (which many cite could be in the upcoming PlayStation "State of Play" this Wednesday, January 31st.
Sonic X Shadow Generations website (Unavailable at the time of writing)