Pretty much what it says in the question title.
Suppose a non-human, social species of Earth animal found itself on an evolutionary path that favored increased intelligence of a kind not completely dissimilar from that of humans.
These creatures, from the beginning, are able to plan ahead and at least to some degree anticipate the consequences of their actions. (It is not beyond them to reason like "If I do X, then do Y, then Z happens, which is good".)
Would such evolutionary pressure necessarily also lead to said species developing an abstract language of a similar kind as humans have in abundance?
For the purposes of this question, let's ignore what this species' language would be like; such a language, if it develops, could be based on any method of communication including vocalizations (sound), body language, or scent (or even telepathy or magic for all we care here). "Language" here pretty much just means "a method of communication between individuals".
Let's also ignore how humans would react to such a species and its evolution in such a direction. (In fact, if that makes you feel better, you can suppose that humans aren't around in this world.)
Seeking well-reasoned answers describing why an abstract language would or would not necessarily follow from a species achieving or evolving toward intelligence. Bonus points for answers that discuss how such a language might also evolve over time as the species evolves. Bonus points also for specific citations, but citations are not a substitute for answers being well-reasoned in their own right.