Originally Posted by
UkcsAlias
Plenty of opportunities. There are MSQ fights they could show off the mechanics, even if a bot does resolve it for you, it can be used to display certain effects.
And even then, some mechanics wont harm if they end up being new, as long as players can be made aware of it. Even in leviathan extreme, a healer might fail to notice the icon and become silenced. But thats exactly the point where they will learn their mistake (they will have to look at their status effects and will notice a certain icon there). Only mechanics that are instantly causing deaths without slow build up are problematic.
If realy needed, you can use 2 bosses for teaching (the aurum vale food mechanic is an example of using the same thing twice in a dungeon, where the first boss fight allowed stuns on it, and wasnt as aggressive at using these). While aurum is boring at it being effectively the same boss twice, its feature does realy demand the player to learn it, or they will struggle (and die) again.
I realy dont think its that quickly going to be an issue. And for raids, as long as the previous patch already showed the mechanic, its fine. Even if players later on follow the msq and raids at a diffirent pace, and face the raid before the dungeon that was supposed to teach them, its still not going to be an issue (players can chat, and normal raids can be done with 7 people anyway). There are always ways to teach new players.