The very first officially sanctionedGame of Thrones Fan Convention, put on by Warner Bros.
He admitted he isn’t allowed to discuss much about season 2, but teased a handful of things.
(Spoiler warning for newbieHouse of the Dragonviewers.)

Aegon II Targaryen (Tom Glynn-Carney) wields his father’s Valyrian steel dagger for the coronation on ‘House of the Dragon.'.Ollie Upton / HBO
“He’s not an out-and-out psychopath.
There are complexities and intricacies within him that make him an absolute gift to play.
He keeps me guessing, so hopefully that translates to keep everyone else on their toes.”

Tom Glynn-Carney as Aegon II Targaryen in ‘House of the Dragon’.Ollie Upton/HBO
But we’ll see.
It’s not looking good!"