Naruto
Ninja world's hero.
Used to be a mischievious kid, now he has become the hokage who protects the village.
Felt like there is a heavy gap between his generation and the new era.
Keeps thinking on how to pass down 'what is the most important thing to everyone' to the next generation.
While this is a good intention, he couldn't even get along with his son Boruto.
Is constantly feeling troubled by this.
Mitsuki
New character for the New era.
Unlike Boruto and Sarada, he doesn't show his emotions much.
He is always using the perspective of an adult to judge Boruto and Sarada's actions.
Just like Bolt and Sarada, he has great parents.
But who are his parents, even Boruto and Sarada doesn't know.
Has stretchable arms.
When he smiles his eyes will turn to the shape of the crescent moon.
Momoshiki
The threat to the ninja world
Surrounding in some ???? castle with a secret, he confronted Sasuke
That time, he leaves the battling to Kinshiki , so his battling skills are unknown.
What secret lies in the castle, and what is his motive?
When he focuses , both of his eyes will have veins popping out, suspected to be using Byakugan.
Kinshiki
Simple thinking, has high battling skills
Is as strong as Sasuke.
Sakura
Sarada's mother and Sasuke's wife. She was once put in the same team as Naruto and Sasuke, with whom she's comrades in arms. The three of them fell into a complicated relationship - but in the end she happily married Sasuke, the one in her heart. In the manga she became a good and frank mother - and even though her husband almost never comes back to the family, she's building up an open and sincere relationship with her daughter Sarada. She possessed superhuman strength, but she's also a superior medical ninja.
Himawari
She helps her mom around the house despite her young age and is the opposite of a troublemaker. It mentions that Boruto is very protective of her, and she of him. It also mentions she tries not to trouble her regularly absent father and does her best to be patient.
Edit.
Sasuke
Naruto's biggest rival but also best friend. A boy who only saw revenge in the past, but has now become an adult that jokes with his friend. Sasuke seldomly returns to the village, but he does this to protect Konoha from possible/impending dangers. In the movie, he became Boruto's master. Sasuke believes that no matter what era it is/how time passes, the nature of ninja will not change. He is on par with Naruto. Using his left rinnegan and right m.sharingan, he fights with the two strongest genjutsu.
Hinata
Has an innocent love on naruto since young, Now it has turn into a deep love.
After becoming a family,
this deep love has expanded on the whole family
Really believes in the 'always troubled and unable to come back home' Naruto
When it comes to Naruto and Boruto's relationship, Naruto, who is unable to go back home, and Boruto, who is hard headed,
she feels sad, and are always worried about the both of them.
From the looks of it, she is not easily shy anymore.
Inojin
Always acts with/accompanies Shikadai, but is not as strong-minded as him.
Sarada
She's Boruto's classmate and Sasuke & Sakura's daughter. She want's to be Hokage and looks up to Naruto. She trains very diligently at home. Inherited the Uchiha Clan's sharingan, as well as the same strength as her mother+ her catchphrase. Also I believe it says she has her mothers boyish & hot tempered manner of speaking, so she often get's into altercations....
Rock lee
Naruto and the others’ senior by one year. The self proclaimed ‘Beautiful Green Beast of Konoha’. He’s been a close friend of Naruto’s ever since they took the chuunin exams, but this time his position is reversed as someone who is presiding over the exam. He is absolutely unable to use Ninjutsu, but his Taijutsu makes him an elite in hand-to-hand fighting.
Sai
Inojin’s father. Ino is his wife. He is a close friend who was put on the same team as Naruto and Sakura back to fill the space left by Sasuke when he left the village. Like Sasuke, he was burdened by a dark past, but thanks to Naruto’s influence he managed to break away from it. His inability to read the atmosphere hasn’t changed since the old days, and he receives complaints from his child about it.