I'm ashamed to admit it but I voted 'yes'. Considering many people say that season 2 is slower than season 1 and that season 1 had more suspense, excitement, etc. Maybe season 3 will lose even more popularity? I'll still be watching though because Lost is joyful
Of course I'll still watch, but i think people will get fed up with the slow revealing of answers and storylines- how long can they write about people stranded on an island.
And i must admit, halfway through S2- i was only watching becuz i wanted to know the answers- its went downhill, altho, im happy to say, rose rapidly afta 'Lockdown'
So i reckon it will lose popularity, but there'll always be enough people to fuel the people at Lost to write more.