Aside from the issue of BG3 as an esport (never going to happen), it is quite probably that a DM mode will be added in the future, so that would sufficiently allow a 5th player to be the one streaming and providing a lot of the “commentary.”
That is great news, Warlocke! It would be very satisfactory, but I fear the DM would be highly busy, so a 6th "player" would be needed.
There is some precedent for sport in D&D already, as you will recall: Hill Giants. They love hurling boulders and competing against each other in this way. Perhaps you or some of the others here can remember some more activities that would form part of a monstrous Olympics.
