See http://www.slashgear.com/microsoft-lumia-to-end-sales-this-year-12455640/
I have the 550 and 650 devices at home.
I have the 550 and 650 devices at home.
We have a 1520 and 1020 at home right now. The 1520 got an update to Windows Mobile 10 and I am sure the 1020 won't get any update.
Funny thing though, the 1520 feels less snappy after the update. Also no option to stop the phone from self updating.