First Dragon he will not be getting the purple one cuz I looked through the likes it had more plus one and more lights in general six versus the the four
And second should he have his own City or town when he gets to Westeros he will be riding a dragon and this will somewhat drain him a lot
And before anyone asks about how much magic can he do think of him like a dragon he can do a a dragon he can do a lot but he still has the limits of a human body that may change throughout the story once he dive into a bit more of magic the old gods if you know a certain run in Doctor Strange Comics he will get a limited form of that in the ice zombies might wake a bit earlier than expected perhaps during the day and yes the dance will be still happening
The romance interest is still
Princess Rhaenys Targaryen