Time-based arena brackets make no sense and should be changed
Keep in mind that MCOC is going on six years old, intermediate arena bracket ends once an account reaches three months old.
Time-based arena brackets make no sense at all anymore. After an account reaches three months old, suddenly it has to compete with veteran, nearly six year old accounts. The roster size difference between two of these accounts is vast nowadays which means newer accounts aren't able to keep up with older accounts nearly as well as they used to. This only serves to demotivate newer players from utilizing an entire section of the game which is only going to push them away.
Arena brackets should be based on something like: number of characters, account rating, prestige, story progression, or any number of alternatives that could balance competition between account sizes more appropriately.
Especially now that the ThroneBreaker progression title has a character rank requirement to "address the difference in account sizes," a change should definitely be made to arena for the exact same reason.