I think it's inevitable, assuming there are still people present in the time it takes. I think of a room full of switch boards. One end is 'communism', the other is 'not communism.' Each of the switches represents a different topic or issue that can be solved and they turn on and off depending on society and factors like education, public opinion, and material conditions in general.

I think somewhere down the line, communism, or a political model like that could come about and nearly all the switches would be turned to 'communism' and assuming it's as good as we believe, there'll be little to no reason to go back to another political system.

I don't know how long it'll take to get there, but on an infinite timeline, I think it would be inevitable to reach a system where humans get their shit together. Now if only we could have a habitable planet until that point.