The PS4, Xbox One, and Switch versions will still be released this coming Tuesday, August 15. Although, the PC version has been pushed back to August 29th. Sega said this about the delay, "We are not going to put out a game that is not the best it can be". They also said, "And we're going to maintain that level of quality and consistency and dedication to that quality. It is so important to us." I absolutely love that. But not to worry if you have pre-ordered Sonic Mania on PC they will be giving out Steam codes for the original Sonic 1 just to get you warmed up.
Here is the opening animation of Sonic Mania! Enjoy...