https://www.pcgamer.com/sonic-the-hedgehog-is-getting-a-movie-starring-james-marsden/

There is going to be a Sonic the Hedgehog movie, and James Marsden is going to star in it. Or at least, that's what Variety is reporting, and knowing things like this is their beat. 

It's a live-action/animation hybrid starring the Westworld star, and while it's unclear what role Marsden will play, it's unlikely he'll star as Tails. The "animation" side of the aforementioned hybrid likely means that the Sonic stars will be CGI, while Marsden will stay in the flesh world. Think the ye olde Roger Rabbit movie. This will be the first ever Sonic film adaptation. It's incredible that they've held out for this long.