TwoSix
Dirty, realism-hating munchkin powergamer
The only real reason to have a feat chain in 5e is if the first feat gives a novel active ability that the second feat then modifies to make more powerful. That could conceivably happen since they're planning on now treating feats as "non-class specific class features" (or something like that.) Otherwise, they should in now way make strong feats at higher levels that are balanced with the idea that you took a lesser version at earlier levels.