Classic Sonic is back in Green Hill - Mobius 1991, he questions what happened and what he learned from his older self in Sonic Generations (2011). & that would eventually lead up to Sonic Adventure 1998/1999, but then in Sonic Forces (2017) Classic Sonic isn't seen as a younger Sonic instead he is seen as a Sonic from another dimension, but then he is taken back to Angel Island, leading up to Sonic Mania/Plus (Game Release: 2017 - DLC/Physical Release: 2018) and Sonic Mania Adventures: The YouTube Series (2018), and ever since we have not seen Classic Sonic at all, so wherever he may be? i hope we get a new Classic Sonic style game similar to Sonic Mania/Plus (Game Release: 2017 - DLC/Physical Release: 2018) and the (Sonic Triple Trouble and Sonic Chaos 16-bit Fan-Games).