I'm not a troll. I'm just assuming. And it's just my personal thought on the subject. But it does not mean that I am in favour of Luffy possessing another Devil Fruit.

I think Luffy will eat the Mera Mera No Mi in the future. Who remembers Madam Shirley prediction where she saw Luffy, clad and surrounded by fire destroying Fishman Island. I think based on this, it should be considered as a possibility that Luffy may in fact eat the fruit.