New interview with series producer Takashi Iizuka during the Brasil Game Show:
https://www.polygon.com/sonic-team-takashi-iizuka-interview/
>[...] “If enough people are coming in and playing it, there's conversations about the game. We have one year of DLC, we could do year two, we could do year three of DLC,” Iizuka says. “Tell us what you want!” Sonic: CrossWorlds being an online game gives room for the team to expand its content in the future. “These are the things we can do because it is an online game. We could add new gadgets, we could balance the game differently.” [...]

>>2020918
Physics calculations are tied to the frame rate atm, so probably never :/