We had an entire thread on the viability of creating a setting contest for 5E on the boards a while ago. In fact, I started it, because I think that the idea behind the competition was so good.If you mean entirely new settings (not things like a 5e release of Dark Sun), the only method of adding that I would find acceptable is the Eberron path, as it filtered several very good settings to one finalist, which remains extremely popular. Another contest like that I would find very good, except maybe remove the "must have classic D&D monsters rule" as that limits the creativity.
I don't need entirely new character types. I don't need new monsters either, there are loads of monsters from previous editions that can be redone.
We had an entire thread on the viability of creating a setting contest for 5E on the boards a while ago. In fact, I started it, because I think that the idea behind the competition was so good.
It took a moment, but here it is: Campaign Setting Contest: Should we do it Again?Can you provide a link to that thread, I wouldn't mind perusing it.