I doubt it very much. The universe is BIG BIG BIG and most sci-fi depends heavily on the existence of hyperspace, so that there can be travel across vast distances. Nice invention to make the stories work, but unless Einstein was totally wrong, there can be no such thing. There may be all kinds of aliens out there but the likelihood is that the distances are just far too huge for us to ever meet any if the speed of light really is the cosmic speed limit.
How we might evolve has far more mileage in it. It hasn't been that long on a cosmic scale since humanity was no more than intelligent apes. But will it be free to go further? Another big asteroid impact could do for us like it did for the dinosaurs. There has only been what we call "civilisation" for about 5,000 years - almost nothing compared with a solar system over 4 billion years old. Or a universe over 3 times older than that.
Have you ever heard of Olaf Stapledon? If you haven't, which is highly likely, I thoroughly recommend "Last and First Men". Beg, borrow or buy a copy... if you're serious about "far evolved humans possibly new races or different species of people", it's the only sci-fi book I know that really imagines this.
It was published in 1930 so 90 years later, the bits about the immediate future may be rather frustrating as he got that totally wrong, so you might like to follow Gregory Benford's suggestion in his preface to my copy and start with Chapter V, "The Fall of the First Men". Stapledon also wrote in a rather old fashioned style that might not appeal to you - it feels like reading a Victorian novel - but stick with it. The ideas are mind-blowing.
If that makes you want some more Stapledon, read "Star Maker".
Edit - all of you who gave thumbs down, explain why.