Larian have been very good in supporting audience participation in games. Baldur's Gate is coded to support streamers. There are options for the crowd to express themselves when there is a choice to be made too.

Is there going to be support for a commentator?

The voice of the historian is very helpful later, and at the time it can greatly help connect the crowd with the game. In fact, crowd participation is a huge part of sport, and we can feel the loss in an empty football stadium these days. Talented commentators bring a game to life. You can see how dramatic it can be in the clips below, and I just wonder whether Larian might grow this role into the game. If Baldur's Gate III is going to become an esport, it will need something like this.

https://www.yewtu.be/watch?v=56SSuXNnnJg