Is Communism Temporal?

On the surface, it seems that Marx and Engels were saying that Communism is only necessary under certain conditions, but as a social sciences major, I would argue that they had to couch their Manifesto to sound that way so that they were not stirring up more dissension than they already had.

The reason being, I am convinced that Marx especially wanted Communism in general. He thoroughly despised the super-extension of division of labour that so diminished the capacity for an equal community of individuals (that sounds contradictory, but he seems to be saying that). The proletariat was kept busy enough and entrapped in their plight of only having labor to offer, that they could not see how terrible their end of the bargain was. They are "a class of labourers, who live only so long as they find work, and who find work only so long as their labour increases capital" (Marx 8). Industrialism in this set-up seemed to be Marx's biggest issue and again, I think he would have tried to avoid it at all costs.