Well, confirmed or not, that movie must not occure!
Right when Sonic has rised from the downhill, another downhill might just be ahead, as Paramount threatens to pull a dull photoreal-pseudo out of him. That stupid poster already reveals that the movie could end up worse than live-action Super Mario Bros. movie from 1993, in other words, equally as bad as all recent pointless remakes - especially live action/photoreal ones - of existant movies in a mix.
I mean, what are the odds they have enough sense to switch back to official Sonic? If they just let Sony Pictures make the movie, the odds would've been much higher. Or Disney. As unlikely as it sounds like, judging of how well the video game easter eggs in Wreck-It-Ralph and sequel were pulled, Disney may have pulled an authentic Sonic movie.
And if Sonic necessarily has to be photoreal, there are way better examples for it: Sonic fanmovie and Sonic's cameo in Ready Player One.
Also, the title. There's already a Sonic anime movie titled just Sonic The Hedgehog, so this photoreal abomination requires a little different one to avoid conflicts.
But there's a chance that the damn movie and its wiki-article are just a high-term scum, that some individual is arranging in order to drive fans crazy or somethin'.
Sonic courtesy of Sega Enterprises