With INCEPTION making over $800 million world wide... it would seem pretty inevitable that they would continue... but I kind of hope that they wouldn't. The story had a deliberate ending and its magic that it wove over the audience that fell gaga in love with it, might sour if it was additionally complicated. BUT - if they are doing a sequel to CLASH OF THE TITANS remake... it'd seem like a no-brainer to do it with INCEPTION, but would Nolan do it? Without him, there'd be no point.
Also - the news that Hardy will not be wearing the Gimp mask - and is going from 168lbs to 196lbs - and we suppose that would be pure muscle gain... that's a pretty impressive difference. Not a lot, but every tidbit is a tad juicy to mull over.