Eggman has been my second most wanted after Shadow when it comes to Sonic characters (and in the Smash 4 days, someone I wanted more)....
....and I will flat out say he literally only got as much discussion as he did because
happened.
And it's not even a "well, we had no reason to speculate a secondary Sonic character until then" because people were talking about Tails, Knuckles, and Shadow
well before Sephiroth.
People didn't have Eggman on their radar when Knuckles and Shadow were shown as Assists and Tails a costume with Joker, even when Vol. 2 opened up.
No, Eggman only really got brought up and bandwagoned because some other third party villain showed up. Then all of a sudden, he was this lock for the DLC and is someone "missing now.
And while I'm glad Eggman is finally more in the speculation spotlight after being constantly overlooked for not being one of Sonic's friends, the circumstances leave a rather sour taste in my mouth if I'm being honest. Because how many are
really going to put him on that same pedestal now that we're in the hypothetical the main three (Tails, Knuckles, Shadow) are back on the table?