Two Point Hospital has expanded already with the first DLC already available and it does sound pretty good.
Despite some shortcomings, Two Point Hospital is a great game for those who aren't looking for something serious. I enjoyed it a lot and certainly even more with a recent update adding in the extra sandbox mode.
The new Bigfoot DLC was announced and released at the same time, adding in multiple new ailments to cure like Barking Mad, Mechanical Metropolism, Reptilian Metropolism, Bard Flu, Knightmares and Monster Mishmash. There's also entirely new hospitals for you to run and new decorative items, so there's plenty on offer.