It’s interesting! If you search for ‘Shahrukh Khan’ in Google it shows Raees and Koochie Koochie Hota hai as his upcoming film.
Maybe because it is listed so in Shahrukh’s profile in IMDB. IMDB page of Koochie Koochie Hota hai also says that the movie is in post-production and that the movie marks the 20 years of the base film Kuch Kuch Hota Hai. Now original KKHH released in 1998. So, is Dharma productions planning to release it in 2018? Well.. we still have to wait for any official announcement.