It has ended. The last chapters wrapped up the plot and brought the manhwa to a close. There might be spin-offs or related works in the future, but the main storyline is completed.
I have no definite information on when it will come back. You might want to keep an eye on official announcements or the creator's social media for updates.
Well, for chapter 58 of a fighting manhwa, first, understand the context and the build-up from previous chapters. Then, focus on the fighting techniques and how they evolve. Also, keep an eye on the characters' motivations and emotions during the fight.
To enhance your fighting skills in manhwa, first, focus on understanding the physics and kinetics of the fights. Also, analyze the character's mental state during battles, as it often influences their performance. Another important aspect is to practice drawing the poses and movements yourself to get a better feel for it.
The ninjutsu from Naruto and the magic in Highschool DxD can create some really cool combinations. For instance, a fire - style jutsu combined with a fire - based demonic spell could result in an extremely powerful attack. Or a character could use the speed and stealth of ninjutsu to enhance their combat abilities in the Highschool DxD world.