re:
We don't know. It's certainly possible, but traditionally speaking they have not done this in the past. They have never made Facetime or iMessage available on other platforms. Now on the PLUS side they HAVE made Apple Music available on Android AND you can use their iconic iPod products(or your iPhone or iPad) on a PC via the PC version of iTunes. So you never know!
Use the Product feedback form on Apple website to let them know you are interested.
Use the Apple Watch section....
Product Feedback - Apple