Just like how the community wants low rate servers. Icecrown high rate still the big boy. For years "we will never make tbc" was coming from staff. Theorized timeline: blizzards classic announcement was mainly a public relations move. New expansion hits sept or nov of 2018. January of 2020 blizz opens classic sever. All private servers struggling by 2022. Allot of people play here for the content not simply because its free to play.

Very likely their reasoning for not making a TBC server was that a certain insanely hyped server was supposed to launch...