Btw I think clearly Oda wants to get it over with G4 and focus more on base Luffy and his looks.
Even if he doesn't "scrap it" he clearly likes to draw normal Luffy more. The detail he gave to "base Luffy" in 937 isn't even close to snakeman and boundman in this chapter. Miles better. It makes it inconsistent with how superior "base "looks but it make sense if he likes it more.