I don't believe tht he will destroy the building those don't even rele matter sasuke says himself I will purify the uchiha name nd he plans to cut every single bond konaha has which basically means he's going to kill everyone who lives happily at the expense of his brothers life which in sasukes mind is the whole village but I also don't think he will just want to see wht people think bout the subject I think he will realize tht the people who made itachi do wht he did r no longer alive tht nd the feeling he got when fighting with his brother against kabuto I feel like he's going to get tht feeling when he fights naruto nd that's wht turns him back to good