Hello Dreamscape, Welcome to this suggestion thread ! there has been a few things that has crossed my mind that some things definitely should change up and also be added on to the game.
Firstly, i'd like to introduce my idea of changing up the mystery box rewards, maybe add a few more rares and some ultra rares to the box that you could also win on a low chance but just to have more options
than just the double experience ring from the regular mystery box like adding atleast icy pieces or flame pieces to the regular mystery box that could also give new players another good way to make money but doing so.. means increasing the drop rate for regular mystery boxes be less likely to drop since you could get something that you could make money off of like 1:30 or 1:40 just as a small example here.
Secondly, I would like to introduce a idea on something similar to raids and battle ground like combining the two in one for a new minigame/boss. So what my idea on this on the battle ground part, you have to find chests with keys and get weapons/armour from different ones and you have to fight eachother on two different teams up to 12 players on each team, now comes the raid mix with this, whoever the last 3 people on each team survives gets to face a even harder boss than any of the raids and combines to one team, and they have to face that boss or many bosses kinda like Jad , have many boss waves and the last be insanely hard including all types of style (melee, range , magic) of attack, certain waves having even different attack styles even maybe new types of styles for the last boss something i was thinking could be a new addition to the server and ideas, ice style from the boss making you slower (decreases your hit speed for a few seconds) and like electricity waves that if your using say a mini gun , gmg what ever it may be that has some type of tech on it gets useless for a few seconds aswell..
also a few things to add real fast to my second idea .. each wave you get to do your current weapons and armour upgrade to the next tier each wave and you get more stat bonus during that instance ^^
I hope you all like the suggestion and hopefully this can be something for future development for ideas or material in a next update!