Spoilers are suggesting it's about Bolt having his Dad issues and Sasuke tells him Naruto'S stories and Naruto jumps in with "I am late dattebayo" and Bolt again saying "I hate him" to Sasuke and Sasuke repairs the relationship somehow.Basically some comedy shitI think they will be best friends. That is what it looks like to me. Salad understands how Bolt feels due to their fathers, but I do not really see a reason for them to be rivals. Naruto/Sasuke had a reason, but Bolt/Salad have a reason to be connected.
Boruto the movie also seems to focus more on the fighting aspect too. So I'm really hoping it is not some school type crap like Blazin' predicted.