Link and I had been talking about a main theme in our server being fairies, and after you gained Elytra you could join the Fairy Guild, but now you will be able to start as a member of the fairy guild and specialize into a specific class of fairy (which will have it's own guild)! We see this a lot like ALO (Alfheim Online).
The possibilities this opens are endless! And while it is easy to obtain Firework Rocket's for flight, they will be available for purchase in the market, and we suspect it will be a hot commodity!
If you have any ideas and feedback, please drop us a comment, we may just include yours!