I think I have the same hype as I did last year, if not either a little less or a little more.
To me, the reveal of Ultra Sun and Ultra Moon feel like a second chance, to be different before the next Alola game.
For example, this time I am Saved (which means I am Christian who believes on The LORD Jesus Christ), and I feel much better being Saved (I'm not preaching to anyone).
To sustain the hype? I have plans on purchasing (and hopefully finishing) three or four games between now and November 17 (Dragon Quest V, Dragon Quest VI, Dragon Quest VIII and the newly announced Mario & Luigi: Superstar Saga + Bowser's Minions). Here's hoping it all goes well.
I won't go on hunts to see any datamined stuff and listen to the soundtrack before release. That sorta killed the hype last year, especially since it was shoved down our throats, by the disrespectful rats that leaked everything when the demo version was released (I hope there isn't one for Ultra Sun and Ultra Moon, I don't care what anyone says).