I can see a lot of new keys on both pohones: dedicated messaging key, back key, SOS/Google assistant key and volume up and down key. So there are both "end call" key and back key. May be the answer to problematic end call key behaviour on N8110 (not having extra back key). So, potential issues with key maping and universal apps compatibility...? :-(
According to images presented by Nokia, the selection keys on the homescreen are for Notices (left) and Camera (right). Where are Shortcuts?! Or are the context keys at least customizable? On the other hand, no traces of "carousel" apps icons/shortcuts as seen on some new KaiOS devices before. So, some kind of custom Nokia launcher...?
According to user guides published by Nokia, File Manager is going to be included "out of the box".
So, probably a lot of new things to explore and also backport to N8110? ;-)