If we look at how communist countries have evolved historically the most likely thing to happen is that someone who talks the talk gets into the highest position and then purges both the right and the left, retaining only yes-men willing to go along with anything. Then it collapses into dysfunction as important information doesn't reach leadership, because no one dares to suggest they are wrong. Finally it evolves into a more typical loose dictatorship, where contrary information is allowed "within reason" as long as you don't commit Lèse-majesté.