It depends on how it is made and marketed.
As a Jurassic World style guns blazin' pg-13 critter fest? probably decent, but only decent.
As an R-rated property that actually does justice to the concept? Not good. It would be one of those movies that would only please a certain amount of people (the fanbase) initially, but become a cult icon later, aka the movie we need.
As another lower budget sequel set on earth? Fair. It would do okay, like the previous 2. But it would likely suck, and spell the absolute end of the franchise on film, and I mean permanently.