What features of BFA have you completely forgotten even existed? Here's a couple to start you off -
1) The boats of Kul Tiras. Has anyone used these for transport past their first hour of BFA?
2) Island invasions. I have completely ignored these on all alts and it has had zero impact on their progression. They seem to be just a pointless monster grind with minimal rewards that Blizz put in to test new AI technology.