I get that it’s not designed for this and more for cosmetics and appearances and buying more Delves keys, but i think it would be nice if you could spend an important amount of undercoin to get some 610 1/6 Hero specific items.
People are still doing delves currently, mainly because it has some strong items and that there is always 1 ring that has bis stats for them.
However trying to get 1 item normally is very hard as you need a Bounty map to make it 610 and then you need to get the actual correct item from chest.
I think that would be a good QoL for people who were not very lucky