A prediciton of what humans will look like in the year 3000

Thankfully, I will be dead in 1000 years.

This prediction is absolute hogwash, I’m afraid I have to say that.

First of all, there’s no way this magnitude of changes (brain shrinking to maybe a quarter the volume, major alterations of skeletal proportions and tooth count) will occurr in only 1000 years. People 1000 years ago were typically a bit smaller than today, but that’s it. No major difference in brain volume or proportions, and certainly not in the number of teeth (cases of hypodontia aside).

We’d need at least a few hundred thousand years to come anywhere close.

Then, many of these changes seem to be opposite what evolution would predict, especially the ones everybody here considers hideous (and that’s not a coincidence!).
• Humans don’t need their brains any less now than they did a few thousand years ago. It’s true many people today don’t really (need to) exploit their full potential, but the same can be said about the vast majority of the population during earlier times. I would rather expect brain size to increase, because it seems that both mental labour is becoming increasingly important, and that intelligence is an increasingly attractive trait in a mate, so unless there are unexpected events both "natural" and sexual selection are going to put pressure on increasing brain size. I admit "natural" selection will become increasingly unimportant as mere survival gets easier, but I think sexual selection is going to get more important in exchange (Would you make children with someone who’s doing nothing and living of the welfare system? Less likely than with someone who is intelligent and successful for sure.).
• Why the hell should humans have more wrinkles? There is just no f***ing reason for that unless people in the future suddenly start to like them!
• Don’t extant humans already have perfectly symmetrical features in most cases (from the exterior I mean of course)?
• I don’t see a reduction in the number of teeth as likely. Given people have to chew less, one would expect a reduction in size. Given people get more tooth decay and therefore loose more teeth, if anything it would be advantageous to have more of them in your mouth. Also, usually powerful biting is associated with fewer, larger teeth.
• No idea where the smaller mouth came from. A less powerful jaw, perhaps (although I don’t think the pressure on that would be very strong either since many of our food items still require a lot of chewing. But why should the mouth get smaller? If anything, I’d expect it to get bigger, as burger sizes increase…
• Longer arms. Absolutely no way, unless we go back to an arboreal lifestyle (which I think we won’t). Longer arms on a primarily terrestrial biped would only be a hindrance and make it look awkward (as I already mentioned, the latter actually counts, because it makes us less likely to get laid).
• Longer fingers on the other hand could actually make sense, and if only for typing. But I also don’t think the development will be very marked in this regard, since most of our devices are optimized for our current proportions, and there isn’t really a reason to change them unless we change first (for which there’s less reason if there’s less to adapt to).
• Perhaps humans will average 2m some day. Larger people are probably a tad more likely to pass on their genes. But that could change for all we know, so I wouldn’t be certain of it.
• Darker skin tone is possible (reasons are obvious), but not all humans today have the same skin tone. For many the portrayed one would actually be much lighter. I’d expect a sort of normalisation as people of various ethnic groups mix.
• Less body hair, at least in some places, also sounds logical.
• Larger eyes: Also possible, depending on what exactly we will perceive as attractive in the future. Also, maybe increased staring at screens will lead to larger eyes being favoured.

To cut a long story short, if nothing unexpected happens humans will simply look more like what their beauty ideals are. This development will probably not be too extreme, because beauty ideals change over time.

I completely agree. And since you brought up brain size first, it's also important to note that brain volume is not necessarily related to intelligence, as opposed to what many people think.

Thanks for clarify this, I really didnt want to believe this.

WARNING: BIGGER EYES=MORE EXPOSURE TO DAMAGE
HIGHER CHANCE OF BLINDNESS MAY OCCUR

Odds are not in favour of this though