Currently Online 
Frontiers 2 is possible, but not the most probable. I guarantee something in terms of a Sonic platformer will be revealed this year as it is the 35th Anniversary. We could get a platformer for the holiday season. It's been over a year since Shadow Generations which was one release with a remaster of Sonic Generations. But also keep in mind that there was 5 years between Sonic Forces and Sonic Frontiers. That is the biggest gap to date in the main series. The next main Sonic game could wait until 2027 or 2028. We'll have to see.
Lifetime Sales Predictions
Switch: 161 million (was 73 million, then 96 million, then 113 million, then 125 million, then 144 million, then 151 million, then 156 million)
PS5: 122 million (was 105 million, then 115 million) Xbox Series X/S: 38 million (was 60 million, then 67 million, then 57 million. then 48 million. then 40 million)
Switch 2: 120 million (was 116 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima
