While it would have been nice to have the Nexus dissolve in a conclusive, logical manner, it didn't deserve such handling. The stable debuted with a huge bang, peaked when they forcibly enlisted Cena and stuck around long after their welcome. CM Punk's takeover was a way to get Barrett off of Raw and cash in on his main event status on Smackdown during a time when that show had very few stars. Punk's shoot promo was a phenomenal way to end the faction's run because there was never any emphasis taken away. Nexus was a top storyline on Raw from the initial attack up until Punk abandoned it and his "Voice of the Voiceless" narrative began. In the long run it will preserve Nexus as a top stable that could have done even more than it did, rather than a group that eventually fizzled out.
As far as bringing back the stable for another run, I don't think it would go over with fans. It might be cool to see original members Darren Young and Heath Slater don the armbands in a tag match together, but I think we could imagine how well that would pan out if it was more than a one-time thing. The Nexus is finished, a nice memory and a decent start to the careers of a new generation of WWE stars.
As far as bringing back the stable for another run, I don't think it would go over with fans. It might be cool to see original members Darren Young and Heath Slater don the armbands in a tag match together, but I think we could imagine how well that would pan out if it was more than a one-time thing. The Nexus is finished, a nice memory and a decent start to the careers of a new generation of WWE stars.