By the name event 'hub', thought like initiating the past events once again. After reading the details, really felt disappointed. Because, it is just to make me stop google for getting event information for a year (upcoming, completed etc).
Why not giving an option to initiate the previous events for players. With that option they can play whichever event they want in anytime of year.
Is there any trouble doing it.
Even if conflicts with current upcoming events, can put a limitation like maximum 2 events only possible for a player to currently make active in a city.
Myself wanted to play the Halloween event and archaeology event together, summer and winter events together. My personal interest purely.
IMO, it would bring more interest to FOE players instead of just giving the progress/rewards of events.