I don't think that they will use symbian again.

I had a n8 and I moved to n900(what an irony) because of the disinterest of nokia and developers for symbian! It was so cool to have updates like symbian belle, and then nothing... And it was a pity because there were some really cool models out there running symbian!

As for the Meltemi(I didn't even know how it is called), I didn't like it... It is like a fake Harmattan but you can't do almost nothing! I was trying to find on an Asha 503 how to change the default memory for camera and I couldn't use it! After some tries I just gave because I was bored