These are total wild ass guesses that just pop into my head when I’m looking at images of the galaxies and universe. Cool things like the Hubble Ultra Deep field and such. So I don’t claim to be a modern-day Nostradamus.
When I look at an image of our Milky Way and wonder how many technological species exist today, I get the impression that there are 2. Us and one other. There have been others in the past but they exist no longer. There will be others in the future, after we no longer exist. There are perhaps thousand or more technologically intelligent species existing beyond our galaxy and some have evolved beyond technological intelligence.
These predictions are wacko of course, but quite fun to think about and speculate.