Whenever anyone asks when an event will recur, the basic answer is always the same:
A. Look at the page for that event on the wiki. It includes a calendar, showing when the event has happened in the past. You can try to extrapolate from that, to guess when it might happen again.
B. Grey Havens might be cycling the events slightly faster than Three Rings did (to keep the player base happy?). So you might adjust your extrapolation a bit.
C. Until an employee of Grey Havens shows up, anything else that is said here is speculation.
Whenever anyone asks when an event will recur, the basic answer is always the same:
A. Look at the page for that event on the wiki. It includes a calendar, showing when the event has happened in the past. You can try to extrapolate from that, to guess when it might happen again.
B. Grey Havens might be cycling the events slightly faster than Three Rings did (to keep the player base happy?). So you might adjust your extrapolation a bit.
C. Until an employee of Grey Havens shows up, anything else that is said here is speculation.