Fun fact!!: Thus actually happens canonically if you look in some of the extra features! One of the commercials have both Maya, Phoenix meet Ryu!! It's mostly Pheonix complaining that he isn't in 3d and then spinning. It's a very fun watch!!
“Naruhodo” means “I see/I understand”, Ryuichi means “First dragon”, as you said. Ryunosuke comes from the mixing of names Ryuichi and Housuke (Apollo Justice’s name in Japanese - meaning lawboy/boy of law)!
I'm not sure on Zieks being Miles ancestor tbh besides the fact he looks like him Zieks is prolly Godot's ancestor actaully, Godot was going originally be obcessed with whine, but that was changed to coffee for obvious reasons and he was going to slam the desk with his leg, but that was also scrapped, not only that, but Zieks and Godot have curly/spiky hair, and triangular eyes Idk just a theory, its my headcanon he's the ancestor to both Miles and Godot... But since Kazuma also clearly is an Edgeworth I have no idea how or when Zieks and Kazuma's bloodline merged...
You know what could have been hilarious? Going back like 200 years to the past and finding Manfred Von Karma, looking exactly the same. No explanation, he is probably just a vampire, though...
According to the AA wiki. Naruhodo is Wright's ancestor. Also I'm pretty sure Ryunosuke's full name is just "I know" or something in Japanese. I don't remember