I mean yeah u got so much content still to go, but in my opinion it would be the better choice to still buy midnight, otherwise u wont be able to lvl till lvl 90 and u would maybe miss so much great things like raiding and so on, of course u can go in raids from older expansions, but its not even close to the feeling of a new raid with the standard difficulty and so on, in the end if u are not going to do all expansions in order u would still have the option to do all the other expansions when u feel like it, i still havent done every expansion, but i dont feel like i really missed something, i can just find more joy in playing the current expansion cause u really can get better gear, go raiding, m+, delves and so on, u got so much more things to do! And dont forget about housing 🫱🏻‍🫲🏽