Expanding on your thought - If he doesn’t give the SOTU in the House chamber, then he can assign the seating in whatever way he likes, I would think. He can put all those angel parents right behind him, the Covington kids, etc. Some active duty Marines, Clint Eastwood and the other paltry few from Hollywood.... and so on.
He can say that all of the Senators have to sit on one side and all of the Representatives have to sit on the other... He can make them double up on seats, if he wants. He can make sure the big bank of EMPTY Dem seats are front and center. This could be fun.
i love that idea. the angel parents especially. people seeing them instead of her would be perfect. nancy will rue the day she took on Trump