Recently I've played PoP 2008 and the original Assassins Creed. Haven't finished either, however PoP is the better game for me. While I also enjoyed AC, the mission design is very repetitive. Always the same stuff to do. Kinda a shame, because the cities still look great and are very cool designed.
There's definitely room for a new Prince of Persia game. They could take all the unnecessary fantasy bits from the recent AC games and put them in Prince of Persia without anyone complaining that they don't fit. Also the rumor says the gameplay style is supposed to be based on GoW, not on Witcher 3 like in AC Origins and Odyssey.
I was playing the 2008 game recently on my Xbox One. It was not just totally different from every AC game, I personally enjoyed it a lot more than Odyssey. There's no reason why these two series cannot exist simultaneously.
I have nothing but fond memories of Sands of Time. The gameplay, soundtrack and voice acting really made for something special. Didn't care much for The Warrior Within but The Two Thrones was a welcome return to form. Like everyone else said, this sounds fake though. Would love a PoP revival under Mechner if it comes close to SoT.
As a general rule.
If it sounds like unimaginative fan fiction but a decent idea it's a fake but if it sounds like an absolutely insane idea that nobody in their dreams would come up with it's probably real