It will not change in 2012. There are sold more phones with Symbian than ANY OTHER PHONE OS, and the sale numbers of Q4 is, if I remember correctly, the highest, ever. Nokia has given NO indication that MeeGo will replace Symbian, on the other hand they have strongly and repeatedly said things like We Will Continue To Focus On Symbian and MeeGo Is Not Ment To Replace Symbian.

Maemo/MeeGo was ment for the highest high end, an internet communication centric niche market, and it would be fairly stupid to cut a leg that 40+% of the world phone users have chosen so that they can start over with an more complex OS that a handful of users - we - use (and complain about).

If anything, the new Nokia leadership is a threat to MeeGo@Nokia, not Symbian. But clearly, so far it has been an useful playground to prepare for the new Qt world order. I expect them to test beta stuff on MeeGo and then push polished versions into Symbian.