It's not the MP that count
Or rather it's not ONLY the MP that count.
For all we know the lens and sensor make-up could be enough to push a 3MP to something quite a bit better.
I don't know how many people would contest that the SE did for a long time hold the best sensor/lens combos in their phones. I could actually quite happily use my C905 alongside my Panasonic G1 and get some comparable results. Okay the photos from the phone were smaller (print quality) in size but resolution was/is great.
The winner for me won't be the flashy carrot of MegaPixels that hook in the many idiots who really don't know better but the tech wizardry that turns a point-and-click into a useful tool. Even if the phone that comes out has only 3MP my bet is it'd still be better (print quality) that the rubbish that Nokia, Samsung and LG have tried to punt as Camera Phones.
Any SE followers looking for an upgrade to the C905....there isn't one it's still the best combo that SE produced that holds a (admitedly puny) optical zoom and decent print quality!