The current Switch had an alternative monochrome (grey) version from the start, so I guess there's a chance the alternative version of the new one would be colorful.
Personally I like it. I choose the grey version of the switch, and I think making the joycons the exact same colour as the system this time looks way better. Also I like the splash of colour rather than it being entirely grey/black.
1: https://www.polygon.com/2017/1/13/14241960/nintendo-switch-l...