in tbc the holiday event before it just din’t happen to avoid a case like this.
In wrath there not delaying but safe to assume wont be updated given the precedence of them not wanting to give out extra gear at the start the vary reason it was stoped in tbc classic.
While if it was the 80 version would req level 75 to accept and spawn the boss as it spams prepatch where you cant level past 70 near 0 chance they will make it the 80 version and have the boss being unable to be accessed after last brewfest they got flak from people not being able to get all the possible tokens as some content din’t work day 1 + ending a day early.
The above is esp a big deal as what a strange trip will be in play and as such getting brewfest done to get all achievements will be quite important in order to complete the achievement for 310% riding as soon as possible. This is the single achievement that gives the most tangible reward of all as its the only way to get 310% without a rare mount of being a glad in wrath. Having all content open for this achievement will like be and should be there prio vs trinkets that where not there or accessible in the first phase on og wrath. They where made to be catch up gear NOT starting gear.
Obv nothing is set without a blue statment but the odds are rather low so woulden’t count on it.