Like so many other movie franchises these days, the Apes series all started with a book. The original Planet of the Apes, a French novel first published in 1963, showed a society of apes and humans that had been completely reversed, with the apes in charge of advanced technology and infrastructure, and social classes not too different from humanity's. This material was originally incorporated into a screenplay by Twilight Zone head scribe Rod Serling, but wasn't pursued due to budgetary reasons.
In a time of practical effects and makeup, this particular vision was considered too expensive to produce. But now? Not only do advancements in computer technology make the idea possible, producers have more than enough incentive to pursue it, if they feel like it, because these movies make good money, and what's more, people like them.
Even though the end of War seems to lead into the original Planet of the Apes movie, don't be surprised for Hollywood to keep filling in the gaps with more movies, now that the apes have taken over. There's never been a better time to swing for the fences with a fully-fledged alternate reality of apes in the modern era. Think about it — banker apes, police apes, apes in driverless cars. Little apes in middle school, prima donna actor apes. This is the one aspect of the original source material that has yet to be explored. Would it be any good? Maybe. Would it be fun to watch? Yes.
