I was wondering about that, i mean if the CDC guy in season one said that there was no cure and that everyone is a carrier of the virus, i wasn't convinced that Eugene could actually fix it.

I had hopes that he could as the show needs to finish at some point. Its better that a show should finish a little too soon rather than drag on. 5 or 6 seasons is just about right, i cant see TWD progressing as a show past that unless there is some sort of major Zombie/Virus development.

Im wondering if the Zombies with the bleeding eyes (the ones who died from that virus) will make a return, I thought that had the potential to add a twist other than just another factor of survival.