Given what MS did to powershell to make *nix commands like ls work (i.e. make them plain aliases to the equivalent powershell commands without any attempt to convert flags) I wouldn't get my hopes up. (Nothing could have prepared me for the disappointment of typing ls -l and getting an error.)

I hate to be a pessimist but $20 says they're just making it so they can technically claim that Windows supports commands Linux users are used to and therefore that Linux users should have no trouble in a Windows environment.

runas is trash, to be honest. I've been waiting 30 years for an OS-native tool that allows me to delegate specific commands for specific users to run with specific parameters as admin. Something I can do with sudo (well, sudoers) in 5 minutes is outright impossible on Windows. I'd like to believe that Microsoft will implement this part of sudo, but I'm not gonna hold my breath