Does anyone know when Season 2 starts?

I’ve heard its 90 days per season, but now I can’t find when the Arena stuff started.  I’m guessing that arenas started in late February or early March which means Arena Season 2 should be starting either the end of this month or early next month.

If anyone know when Arenas went live that would be really good to know!

Thanks!

Oh:  You will be able to carry 5,000 Arena Points into Season 2.  So I hope it has better stuff!