Any idea if there will be any new DLC? (Dev question)

So I’m asking the developers if there is a reason I should keep this in my steam library. Really. I want to know if there is some big DLC coming up that I can look forward too. Because let’s look at something here. From 2 developers that I buy games from they usually make 2 small DLCs and then do a big one then they might do 3 small DLCs to end with. But then again they might make a free update like: ADDING BIG TURRETS TO THE GAME…Just a hint ya know. The turrets we don’t get to use and all…