I'm with the people who don't want light up features. I don't mind having it, but if I had to vote, I would prefer to go without any light up stuff.
The tease video looks very good. I like the closed mouth version very much.
The open mouth version is also good but looks very off when he is facing to the right.
Either way, this is looking unbelievably good for a wip. Looking forward to seeing the final sculpt.