I'm hoping for what StaticJam said but I'm expecting Nozawa to ham it up with extra cheese. Can't wait to hear the 'buahaha' ridiculous evil laugh coming from another Goku.
The thing about Kid Trunks is just that he's a playful cocky kid. This is based on DBZ's Vegeta and his cocky 'better than thou' attitude. However, you have to remember that Vegeta's personality has greatly changed in Super to where he is acting more like a martial arts/samurai master(teaching cabba through techniques) and more like a caring father(looking out for Trunks every time he goes off somewhere). He's no longer saying cocky quips and thinking he is the best as often as he used to(In terms of his fight with Hit, he was just feeling himself after having back to back wins, equate it to a basketball player having won 3 games so far out of 7). He is instead becoming more solemn and observant. I can easily see Trunks growing out of this and maturing better(although not all the way to Future Trunks levels) simply based on how Vegeta has been acting more mature himself lately in DB Super. The pride will always be there but instead of acting like he's the best, he'll be more inclined to actually become better than the best, because that's what Vegeta would want him to do and that's what Bulma will encourage from him.
Compare and contrast this to Goku's family where Gohan, a boy with the most potential ever seen in the show, never wanted to fight because he was forced to, thus he eventually became a scholar. Then when stuff finally goes down on earth, he gets beat down and he starts saying he needs to train again. That's not how you should be doing it Gohan. It's like a boxer who's really out of shape trying to go back in the ring after years, when the entire boxing scene has already evolved. It's reactive thinking and he'll just be beat down yet again in the future unless he is doing some truly hardcore Goku-esque training, which I don't see him doing. Then let's look at Goten. We see a kid who has fighting potential but thinks it's all a game. His father doesn't train him(like Vegeta used to with Trunks) so he just does what he can to try and keep up with Kid Trunks(Who's confirmed stronger than him). His techniques and form are sloppy because he isn't learning anything through his battles. He looks like one of those kids who watches someone else fight and then tries to mimic the moves, not understanding why it isn't working as well for him. He doesn't seem like the scholar type even though Chi Chi tries to force it, so honestly I don't know where he'll end up when he grows up. On top of all this, the show makes Goku seem like a terrible father because he barely cares about Goten or what he's doing, yet he shows Gohan much more attention.
tl;dr Trunks will be more mature and a better fighter growing up because of Vegeta's character changes/development in Super. Goten, not so much.
