Adam has reiterated more times than I can count during TOH promo that this album IS melancholy. Fans that will attend TOH forth coming tour KNOW that going forward. This is not a bad thing, just a different flavor we will get to taste of his voice.
I do not ever think that his audience will be more quite for TOH tour. It is an impossibility that I cannot fathom. I will concede that there will be quite ~moments as there were with Soaked on GNT and Stay from WAG. Quiet moments to me are another flavor too.
Adam has historically divided his tour shows into specific parts or acts if you will. He has a big opening, a subtler middle and an uplifting ending. He will more than likely plan TOH tour that way also. So IMO the melancholy songs will have a place in the middle.
Adam, now also has a catalog of work to pull from. He will more than likely pick favorites from the past and keep the show jumping and high energy. TOH has very high energy songs too. The Light, Evil In The Night, Ghost Town, These Boys, and Another Lonely Night are high energy IMO.
I just respectfully don't agree that the audience will be quiet and observe his voice and physical beauty. None of his tours, one off shows, or TV performances prove that to be true. And he would never IMO want his audience to do that.