Here is a preview for what to expect in May. Many of the features shared are still in active development so it may be subject to change.
Kromede's Revenge will begin May 2.
Prestige Pack update May 2.
Secret of the Ancients will return in the middle of the month.
Power Up Week & Triple EXP Week will be activated at the end of the month.
Schedule of upcoming boosts:
Double drop May 4 - May 6
Double crafting May 11 - May 13
Double AP May 18 - May 20
Double EXP May 25 - May 27