No, Boruto is alive in the manga. The plot hasn't led to his death. However, the manga is ongoing, and anything could happen in the later developments.
Yes, Boruto is indeed a manga. It expands on the Naruto universe and offers fresh perspectives and storylines. Many fans enjoy reading it to delve deeper into the world created by the series.
Naruto would be devastated. He might blame himself for not being able to protect his son. Sasuke would be angry and would likely go on a hunt for the perpetrator. His friends like Sarada and Mitsuki would be heartbroken. Sarada might vow to become stronger to prevent such a tragedy from happening again.
As of now, no. In the Boruto series, their relationship is mainly focused on their friendship and comradeship as ninja. There are some moments that fans might interpret as having a hint of something more, but the story has not made their relationship a romantic one in an official capacity.
No. The official Boruto series is focused on the growth of Boruto, his friends, and the new generation in the ninja world. Fanfics are often creative interpretations by fans, but this one sounds like it's not in the spirit of the official series at all. It's likely a non - official and inappropriate creation that has no place in the official Boruto story.
Choji can be an interesting addition. He has a long - standing friendship with Shikamaru and his unique eating - based jutsu can be a valuable asset in battles in the fanfiction. With Ino, he can provide some comical relief as well as a different type of fighting style. Also, Kakashi could be paired with them. His vast experience and diverse jutsu knowledge can guide Ino, Shikamaru and the others, and his laid - back but serious attitude can be a great influence on the group.
Sakura might also be paired with Shikamaru. She could be in need of Shikamaru's help when she is facing a medical emergency in a battle situation and Shikamaru uses his shadow blade to fend off the attackers while Sakura tries to save a wounded comrade.