https://www.onepagerules.com/news/3rd-edition-is-on-the-horizon
OK, so we all know how squishy the word "soon" can be when it comes to release dates for anything. But, I'm still excited.
It doesn't look like there are many big changes. The main rule changes seem to be terminology changes, mostly to create consistency between the SF and fantasy lines -- things like using "Caster" instead of "Psychic" or "Wizard", or "Shaken" instead of "Pinned" and "Wavering."
People on the discord have been talking about a lot of point-cost changes in the army lists, but I don't really know enough to say much about those. (Like that usually stops me...

I've spent some time recently getting my resin printer in shape, and finally learning how to use it, so it's probably about time for me to start printing an army. I'm thinking about a Robot Legions army to start with.