Is this still going to be using the absolutely dreadfull conhost? Because that's the biggest shortcoming windows currently has with its interactive command line tools, cmd.exe and powershell are both usable, not great (okay, pretty bad honestly, but usable) when you don't consider the shitty terminal they force you into using.
I agree conhost is terrible - but they have finally made some improvements in Windows 10 [1]: - Drag-to-resize - Automatic text reflowing on resize - Ctrl + X/C/V support for cut/copy/paste - Selection that does line-wrapping - Transparency - A full-screen mode [1]: http://futurice.com/blog/a-saner-windows-command-line-part-1
Unfortunately I still think this is going to be kind of a shitshow as long as they keep the black box nature of conhost. The terminal apps OSX and most linux distros ship with are fairly bare-bones too and I doubt reprogrammable 256-color mode is on microsoft's roadmap.