While I do agree with this assessment, the press releases also claim that this game has been in development since Forces was released in 2017. That means that about 4 out of the 5 years this will be in development, they've been working on the base mechanics and engine. This could mean both good and bad things so take that as you will, but the fact that 4 years in they haven't shown us much beyond the environments is questionable at best. We know Sonic Team hasn't always been the best when it comes to time management. I'm intrigued by what I've been seeing so far. Open-world Sonic does have potential in my opinion, but it does remain to be seen how well executed it will be in a year's time. Honestly, I would say that it's far too early to say one way or another how it's going to turn out.