The majority seems to agree that there is too much D&D in Dungeon World. For example, having attributes like Strength between 3 and 18 mostly adds complexity but little benefit. So everybody likes to hack Dungeon World: Chasing Adventure, Stonetop, World of Dungeons, Fellowship 2e, Homebrew World, …
Is any of those getting popular so we could have a modern „default Fantasy PbtA“?
There are so many hacks that I think it makes it unlikely that any will emerge as the consensus default. Other hacks than the ones you mentioned: Unlimited Dungeons, Freebooters on the Frontier, Quest World, Maze World, etc.