If WSL implements keyboard shortcuts for copy, paste and the system menu, they'll certainly need to choose keys that don't conflict with those used by ncurses terminal applications. I plan to experiment with virtualization as well, once I arrange for help to change the BIOS settings of my new machine to enable support in the processor. (I don't know why new machines are supplied with virtualization turned off by default, but that's how it is.) I use BRLTTY extensively under Linux. If I could get a reliable Linux/Windows virtualized configuration working with braille support under both operating systems, I would have a good solution in place to meet my needs. Incidentally, Microsoft are now using virtualization to provide protection against malware, but only in enterprise versions of Windows that have been configured with a list of trusted applications, as I understand the documentation. It would be interesting to know whether this has any implications for screen readers when enabled.