Plan A was to internally develop their own hardware, running their own OS, offering customers items from their own ecosystem.... and they've kinda being fucking that up for the past 3-4 years. Hence Windows Phone Plan B.
So really these nine shareholders are offering Plan C, and their Plan C seems to be essentially going back to Plan A with a promise that this time it'll be different.
If I was an impartial Nokia shareholder I know how I'd be voting.