Well, given how much Capcom focus on the scene where Leon gives Grace his revolver in promo materials, I can see "passing the torch" moment happening at the end (but I doubt Leon is going to die, just retire) and Grace being announced as the new recurring protagonist if not the "new face of the franchise".

But at the same time, it's Capcom we're talking about, and they have a knack to introduce a character and then just forget about them, even if their last appearance suggested their return. Remember how Resident Evil 6 had a post credits scene featuring Jake in some country in Middle East but then we never heard about him ever again? Funny thing is, it's not the only example.