Reasonable upgrade of hiryus would get my support, though I can't say they're on my too puny to use list really...I'd like them to be able to cure poison and for them to not be so angry when they're fighting that you need to stop them before you mount mid battle. Maybe a modest special attack. But I would rather see pets like reptalons get the love first.
Definitely a no on pet scrolls though. Why not simply ask for different pet specific improvements? Otherwise all you're doing is replacing time spent farming a good pet with time spent working the same boring spawns repeatedly to get scrolls for all your pets, then training time. I'm rocking in my seat with boredom just at the though.
Besides, who is going to give pets reading lessons? I'm not! Last time I tried to teach a dragon the ABC he got carried away when I said P for Puff and I got rushed to the emergency healers.
And I know I'll get scowled at for saying this, but if you actually want something in game, make it something reasonable and easy to chuck in. Some days I'm just waiting to see "strap on side canons" lol. But while it's funny to read some of the more extreme requests, we're probably unlikely to see them.
Wenchy