Everything should be Obtainable but not just given to you

solutions for fomo items:

all quests previously taken out are put back in with rewards intact.

make challenge mode sets rewards come back with timewalking and have people do them in a 5 man group similar to mythic plus format and can be done anytime during the week with a group

AOTC mounts are placed into a raid with a very rare drop rate like other mounts at the final boss of a raid.

all gladiator mounts from every season of every expansion are obtainable and are achievable with a token that can be bought from a vendor for attaining gladiator at the current season. But now u can get a gladiator mount tokens from not only getting gladiator ranking in 3s but from 2s,rbg,brawls, and solo shuffle.(perfect time to turn rbg into solo queue like solo shuffle)

All holiday mounts previously taken away are put back in with the same drop rate as before example old brewfest ram

old prereworked raids/dungeons are put back in similar to how old SM and scholomance was put back with their old rewards intact. however i do not like the fact that old SM was only obtainable via seasonal quest, so allow them to be back via a questline that is always available or just allow people to go in outright example old zulaman,upper blackrock spire, sunken temple

allow preseason events to be available from zidormi or whoever and allow players to complete them.

Events that gave rewards that are not obtainable return such as black qiraji battle tank and crusader horse.

And last but not least have zidormi or chromie send as back to a classic pre cata world in order to obtain transmog from the quests.

Things to do and things to collect make me happy and to gatekeep anything is stupid tbh.