This is kind of a loaded question because it's so broad. So I'll just throw my thoughts down on the idea anyways.

Honestly with all the way that game dev has come it's so sad to see just the increase of people that are so ungrateful and dont appreciate what went into making it. Complaining about small not a big deal bugs that occur, blaming the devs for stuff that's completely not up to them but the "idea man", etc. Although good things are coming out of it. Like children wanting to get into it more which is awesome and indie developers basically holding up the industry while majority of the AAA companies get their shit together. So I see all of that increasing. Also I'm expecting to see the Rust language start to be used in AAA titles replacing C++

Web dev I believe will just get more JavaScript improvement with new libraries, frameworks. I really hope the companies that had PHP5 legacy code get back on their feet quickly. But I hope we can become more accepting of JavaScript doing more than just webdev like Electron, WebGL, etc. Because I think it's great that it can do all that stuff. Is there better options hell yeah but let's let people do crazy shit.

Software dev well I see python making a bigger uprising and I'm hoping people become more accepting of python as well.

These are all just random thoughts so please take that into consideration