Like z3bra predicted, the Linux ecosystem has been moving towards a SystemD singularity for some time now, and it doesn't seem like it's gonna stop anytime soon.
In the future, I believe SystemD will have more influence than before and add even more features. We've already seen the beginning of this with SystemD/homed releasing last year IIRC.
It also looks like Windows and Linux are getting more and more compatible with each other. Windows now has WSL (2) and I predict it will have the ability to interface with Linux systems more closely during the next few years. Linux also got support for the NTFS filesystem last year, so the support is growing on the Linux side too.