My biggest complaint with the expansion reveal has been the lack of definitive information.
There are a lot of hints, but they shied away from giving us actual definitive mechanics. I know a lot of this is in Pre-Alpha, but even just having some examples of the way dragon riding is "different" than flying would be great. They said it would be different, but nothing shown makes it truly different than flying other than you can do some cool things to go faster. Is that all that we're getting, or is height actually limited in some way? They never showed the player actually being forced to lose height or hitting a brick wall where they could no longer go higher due to losing too much speed, so how is this truly different?
If it's not an entirely new thing, why not just explain that they are allowing normal flying mechanics to exist alongside the interactive elements? Like explaining something along the lines of "You can still fly like you currently do but you will be slower than if you chose to interact with the dragon riding elements," if that's how the mechanic will work? Or why not explain that your height is dependent entirely on speed, so you can't fly the same way you did before?
We're in this limbo of Schrodinger's dragon riding at this point.
I have similar complaints with the lack of discussion on what end game activities will look like and the lack of specific info regarding the talent trees. I'd like more info on things so we can give concrete feedback based on what their current design intent is for these things. Even weak statements like, "We're looking at doing this with this class and spec in this way," would be better than nothing. I can sorta decipher their intent based on the images, but we don't have a lot to work with for concrete information on a lot of these things so far. It's a little frustrating.