1987.11.15 the majority of the population are wanderers

[APeacefulWarrior]

Actually, Ra said at multiple points that the Harvest is an incredibly popular time to incarnate, and when he was actively being channeled, the Harvest proper hadn't even started. I would find it plausible, from what was said, that there has been a ramping-up of Wanderer activity. Plus keeping in mind, of course, he believed the Harvest would go on for 100-700 years, which means there's still a lot of time for fluctuations in Earth's population.

I also came across a relevant bit in Session 17:

17.1: You will find a sharp increase in the number of people, as you call mind/body/spirit complexes, whose vibrational potentials include the potential for fourth-vibrational distortions. Thus, there will seem to be, shall we say, a new breed. These are those incarnating for fourth-density work.

...

Those who remain in fourth density upon this plane will be of the so-called positive orientation. Many will come from elsewhere, for it would appear that with all of the best efforts of the Confederation, which includes those from your peoples’ inner planes, inner civilizations, and those from other dimensions, the harvest will still be much less than that which this planetary sphere is capable of comfortably supporting in service.

Now, what Ra's talking about there are, I believe, what are called "Indigo Children," who -as I understand this- aren't technically Wanderers. At least as Ra uses the word. But as Minyataur pointed out, it's a little hard to tell whether Q'uo was referring strictly to Wanderers as Ra used the term, or in a more general sense of those-who-wander. I tend to think it's the latter as well. He seems to be including "aliens" alongside the deliberate incarnations of 4D-6D Wanderers on Earth.