It’s nice to have this in writing from Official sources.
Lumia account tweets that there will be Windows 10 upgrades for ALL Lumia Windows Phone 8 devices (not sure about other OEMS…the focus is more Lumia here. e.g. windowsphone twitter is lumia). That’s nice to know for certain that units from 2012 (920) and low end (520) and every member of the Lumia WP8 devices will get the upgrade.
It was a much harsher time when folks just bout a WP7.5 handset to have no hope of WP8 (though they did get some cosmetic changes).
As for new devices ‘models’ suggest more than just phones. More lumia tablets?
I’m sure everyone is eager to be overwhelmed by the awesomeness of their first flagship Windows 10 phone (1020 successor, 1520 successor, Snapdragon 805/810 etc)
@_Y06_ There will be Windows 10 upgrades for all Lumia Windows Phone 8 devices 🙂 And we will release new Windows 10 models in the future!
— Lumia (@lumia) November 11, 2014
Cheers MuhsSalah for the tip!