I swear, I hope there is NO loading times throughout the whole game. Like, if you go in a dungeon, it goes right in and blends with your movement.
I would imagine dungeons would be the only time the system loads. I bet the load is masked by dramatically descending the stairs into the dungeon like skyward sword did (was an homage to original zeldas).
But if it doesnt even then? I will be even more impressed.