I hope they plan on having a port of Chrome Remote Desktop from the Chrome Web Store if they do drop support outside Chrome OS (from what it sounds like). I still use that on a regular basis between my android phone, Linux machine, and windows desktop.
Another Chrome Remote Desktop user here. I used to use Live Mesh Remote Desktop back when that was a thing and I really don't fancy having to move to yet another remote desktop service, especially the subscription based ones (plus I'm broke, so...)