I’ve never needed it, I have a remarkable 1 and it’s perfectly enough for my usage, I use it only as an ebook reader that can takes notes, I don’t need the fancy colors features of the new one.

It’s already possible, with a remarkable 2 and a special vnc client https://github.com/matteodelabre/vnsee. Though I have not tried it yet, it looks great, but the screen is way smaller than an usual pc monitor