I also observe a renaissance of command line interfaces. I guess it's a trend in a similar way how the graphical user interface (in the MS Windows/OS X/X11 way) has been trendy in the 1990s/early 2000s. Remember that Apple banned the terminal from classic Mac OS. This was a declaration of war against complicated CLIs. Nowadays we experience the opposite: Microsoft is building the most modern Terminal emulator as well…
If it is anything like Powershell, which is more "modern" than bash, then I don't think it will make much of an impact. Powershell seems like it was designed by a comittee which did not quite understand the point of what they were doing.
It seems that if at least someone on that committee used a Unix terminal maybe once in their lives they would realize that what they were building would deliver a really bad user experience.