Looking at the data at hand, I think it is safe to make the call that Maria will not threaten the Gulf of Mexico. There is still a small chance of it raking the Eastern Seaboard, but that is waning as the storm is expected to turn north-northwest in the next 2 days. I've included some graphics for you to look at.
I've not watched the news reports of Puerto Rico and the surrounding islands. I'm crossing my fingers and praying they were not hit so severe.