Gen X is too small to matter. Millennials are stepping up and will compete with Boomers for a little while until they finally take over. Thing about Millennials though is that it is a very K shaped generation. About half have had decent success and are conservative/liberal and the other half have been absolutely crushed so it's kind of a mixed bag and as long as the Boomers have any influence not much is likely to change. GenZ is bigger than Millennials though and should be right behind them. They are very different and much more politically radical, on both the left and right. Things are likely to change with them.
One thing I'm looking forward to with millennial leadership is just people that finally fully understand the power of the internet, big data and what truly distinguishes the information age. If you didn't grow up with it, it's hard to grapple with just how much it truly upended ... fucking everything. They mostly still don't understand that a computer can basically read their mind now, just through indirect data gathering and comparing them to all of the other people. We all get that at a more intuitive level, we've spent too long around these algorithms and seas of semi-anonymous others.
Of course we'll be in some quantum AI room-temp-superconductor age by then, so, y'know how it goes. But we should at least have a better handle on the information age problems, so that'll be nice.