The two are currently working together on 'Happy New Year', which will hit theatres on October 23 this year.
"Farah Khan let's make a sequel after 'Happy New Year'.... 'Main Na Hoon Na! Only bathing scenes and the whole film shot in a tub," Shah Rukh posted on twitter.
'Main Hoon Na' marked the directorial debut of choreographer Farah and was released on April 30, 2004.
"Sorry will pakao (bore) you all today with nostalgia about 'Main Hoon Na'...In a senti mood today," Farah tweeted.
