from google translate it seems like they had change the lv exp penalty to Lv21±, so they don’t plan to change the queue system?
Level Characters> Monster level
21 level difference obtained from the experience decreased by 5% per level
If the difference is more than 40 levels, experience acquired 0
Character Level <Level Monster
21 level difference obtained from the experience decreased by 5% per level
If the level difference is less than 35, obtained only in 25% EXP