Hello,
TO answer the first message, yes it's correct, and yes it is in development a new dates system (no more period or single dates, but no limited from to system, with repeated function, and optionnal end date...)
So a complex development, already in dev, but not yet a date for delivery.
To answer your second message, this is normal if you have set your menu link to display only the next date (that means the option "Display all dates" is set to "No". If you set it to "yes", this will display 3 times the event, which one with the appropriate date or period
)
Hope this helps!
Regards,
Cyril