Keep the Capricorn achievements permanent. Also add similar ones to the other maps. I really like the new achievements, you should keep the trend up. Just not as temporary content.
The current competitive pvp achievements are all very bland. Win so many games as X class. Would be a nice way to add some extra variety to what people are trying to earn as they play.
Plus, do we really need more temporary content? They’ve been coded already, why take them out? If it’s for the “special title” then remove that and leave the achievements after the deadline. Although I personally think the title should remain.
I know other things need attention in PVP but just wanted to put it out there that in this case adding more may be better than taking away.