The title gives it all away but I was thinking it would be nice if we had an event countdown so we could know what is next, race, maze or anything else. The event countdown would appear 1d before the event starts. In fact, it doesnt have to be a countdown at all, just a simple notification in the news section. This way we could all prepare ourselves, our teams and our gems

Keep your eye on Game updates because Fox already post the Titan event there and the mini events (https://forums.socialpointgames.com/topic/5863/mini-sand-event)
also the Talos dungeons were announced so already some announcing already takes place.
Little tip If you start to follow Fox you never miss any ;)

As Marianne said +
some we got in game notification too before breeding events and we got 1 recently before the scroll collecting by 2 days

I think it is a very very good idea.