User blog comment:'Sonic the Hedgehog'/Scratch and Grounder are trying to make a comeback I hear./@comment-3990769-20110701222729/@comment-17720060-20110701223001

Most likely not, since SEGA never created Scratch. Grounder may appear again, but in his Sonic 2 form most likely. But the ones you're talking about (AoStH) may never appear again, and definetly won't appear in another game.