Even with that i don't expect name haki move like what we see with garp .
Just some haki punches like we see vs Kaido even if they look some what stronger .
Nope, Luffy's Haki feats will even be better than the one Garp threw i egg head island. Read chapter 1026, look at the size of Base Luffy's coc Haki barrier when he hit Dragon Zoan Kaid's face.
Then read chapter 955, and you would see that Luffy did the same thing as Garp without ACoC to boost his barriers size. WHen Luffy adds his CoC haki to his move in chapter 955, it becomes the same move as Garp.