Here's what I think;
Mania looks amazing even though 60% of the game is going to be re-imagined levels but there's nothing wrong with re-imagined levels. Just look at Generations for example, I don't think it's as good as people say it is but I still enjoy it. A̶l̶t̶h̶o̶u̶g̶h̶ ̶n̶o̶t̶h̶i̶n̶g̶ ̶i̶s̶ ̶a̶s̶ ̶o̶v̶e̶r̶r̶a̶t̶e̶d̶ ̶a̶s̶ ̶C̶o̶l̶o̶r̶s̶ ̶

I'm not the biggest fan of the classics but Mania looks like it can be one of if not THE best 2D game. While I may not be the biggest fan of the classic games just be glad that I'm not one of those nostalgia blinded people.
Forces on the other hand, at first I thought this game was gonna be amazing too, but after the E3 footage it looks mediocre. There's too much 2D, it's like the devs listened to TWIP, TERRIBLE IDEA!!! And Izuka said that this game would "NOT be a sequel it's a brand new experience" but it seems like a combination of Colors and Generations mixed with it's own coat of paint. I do think it's nice to return to the boost gameplay after Lost World and Rise Of Lyric took a break from it, but this better be the last game to use it.
Also the Wisps are returning and I hate the Wisps on so many levels. I'm not just saying this b/c they returned in future games, I played Colors when it was new and I didn't like them then, and when they returned in Lost World I was kinda turned off from that, and the Wisps are really one of the only problems LW has. The Wisps felt totally useless in LW and they had NO purpose in the plot. In Forces there better be a plot important reason for the Wisps being there.
Classic Sonic looks whatever, Modern Sonic looks meh, and the Custom Hero looks good, making me so far say it's ok. I just hope it's better than Colors, I don't dislike Colors but it's the most mediocre Sonic game imo, I'd go as far as saying Sonic CD is better.
The story of Forces, it actually seems interesting. I just hope that Pontaic and Graff don't lay a finger on the script. Shadow, Chaos, Metal Sonic, and Zavok are returning alongside a new villain named Infinite. "The main villain of the game, who came here by time traveling. I mean it's just Mephlies wearing a mask, their pose is indistinguishable, and they have the exact same eyes.And look at those blobs it's obviously time blobs being thrown there." - Redhotsonic, 2017 (Check out the video right here it's gold;
https://www.youtube.com/watch?v=IEzeeIUIioU) Anyway with the story it looks great. It seems like they could give us that combination of light-hearted and edgy like SA2 and Unleashed, and I'm glad that the serious factor is back. I understand that people like Somecallmejohnny don't want Sonic games to have dark elements but I feel like it always works better that way. T̶h̶i̶n̶k̶ ̶a̶b̶o̶u̶t̶ ̶t̶h̶e̶ ̶l̶a̶s̶t̶ ̶t̶i̶m̶e̶ ̶a̶ ̶S̶o̶n̶i̶c̶ ̶g̶a̶m̶e̶ ̶h̶a̶d̶ ̶d̶a̶r̶k̶ ̶e̶l̶e̶m̶e̶n̶t̶s̶.̶ ̶W̶e̶ ̶h̶a̶v̶e̶n̶'̶t̶ ̶h̶a̶d̶ ̶o̶n̶e̶ ̶s̶i̶n̶c̶e̶ ̶B̶l̶a̶c̶k̶ ̶K̶n̶i̶g̶h̶t̶ ̶a̶n̶d̶ ̶t̶h̶a̶t̶ ̶w̶a̶s̶ ̶w̶h̶e̶n̶ ̶J̶a̶s̶o̶n̶ ̶w̶a̶s̶ ̶s̶t̶i̶l̶l̶ ̶v̶o̶i̶c̶i̶n̶g̶ ̶h̶i̶m̶.
Overall Mania looks like an 8.7 and Forces looks like an 6.5 I am looking forward to both of them, but I don't have my expectations too high for Forces. If Mania is as good as I'm expecting it to be then we'd finally have a good Sonic game again, LET ME EXPLAIN WHAT I MEAN BY THAT! When I say good I mean something that isn't just ok like Colors or it's good but I don't really care for it like Generations. If you ask me the 360/PS3 version of Unleashed was the last good one. (In case you didn't know the Wii and PS2 versions of Unleashed are different to the 360 and PS3 versions)