I would love to see them go again.
I think a peak Conor beats peak Khabib.
I think it would be a different fight and Conor has definitely shown the aptitude to learn and evolve from his previous mistakes (see Nate 2 v Nate 1). That said, he still wouldn't have any response to Khabib taking him down. Once that happens Conor, becomes helpless. Its like attempting to out box an Anaconda.