There are seven 3rd-party companies that have released 5E adventures so far, even without a proper license. I'm really looking forward to Necromancer Games' Quests book.
(See my sig for my list of available 5e adventures).
I'm anxiously looking forward to everything Necromancer is coming out with soon: essentially, a Monster Manual 2, a massive book of adventures, and a spell book. Now sure, lots of this is updated from 3e, but i'm still excited for it.