I can only see this tiresome arc ending one of five irritatingly predictable ways:
1. Dr. Robotnik is forced to find a way to cure the planet, starting with Sonic. He'll have to BS his way back into Sonic's temporary good graces and accept that -he took things too far, whilst struggling with thoughts of what could have been as Mr. Tinker. Along the way, Eggman will need to apologize up and down to everyone he cures and keep Shadow, Omega, and Espio from killing him. Eventually, the day is saved and the villain scrams.
2. Dr. Starline finally deposes Eggman and takes control of the Earth, with the Deadly Six at his heel. He does better than Eggman ever did and begins plans to expand to the cosmos when Zavok and the others make their move. Starline and Eggman bury the hatchet, cure the planet, and disappear to scheme another day.
3. The Deadly Six strike early and brutally, taking out Starline after putting Eggman out of commission. They spread the Metal Virus all over the Earth and make everyone their bitches, humiliating Sonic and Eggman in particular. One of 'em, however, screws up and gives Sonic an opening.
4. A while after succumbing to the virus, Sonic manages to asspull some way to break free of his Zeti mind control (BECAUSE HE'S SONIC) and has to slowly take the Deadly Six' rule apart from the inside, angsting all the way about how wrong he was for letting Mr. Tinker live (at least without heavy supervision).
5. The currently unaccounted for Blaze and Silver being the only ones left to save the day, and ultimately doing so with their respective Super forms...with plenty of OOC (and pointless) ship teasing en route. As if they weren't forced at the hip already. ¬___¬
However this ends, two things are certain: the Resistance will never be disbanded, and Sonic will never live this nightmare down...because NO ONE will stop bringing it up for the remainder of the comic's run.
And that I am beyond sick of this arc. It wore out its damn welcome 10 issues ago and needs to END already.