Mumbai, Oct 27: The fourth instalment of multi-starrer film "Housefull" is set for a Diwali 2019 release with a few additions to the cast. The film will revolve around the theme of reincarnation, a statement said. "Houseful 4" will also mark the return of Sajid Khan as the director for the franchise. "Housefull is franchise of fun and fourth instalment will be the biggest 'Housefull' that we have made till now. I am happy to be back with Sajid Khan who directed the first two parts of the film. We have a funny thematic twist in the fourth part as the plot is that of reincarnation," said the film's producer Sajid Nadiadwala. "We have big production plans for the movie and that's why we think that we would need all this time to make it the event film of 2019," he added.