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.
It would probably be really interesting. Naruto's skills and abilities as a 'god' would likely disrupt the normal flow of the Highschool DxD world. Maybe he'd use his ninja techniques in battles against the devils and angels in that universe.
To become a god in manhwa, usually one needs to overcome numerous challenges, gain rare treasures or powers, and have a unique destiny or calling. It's not an easy path!
Becoming a god in manhwa can be a complex journey. It could involve obtaining rare artifacts or blessings, forging alliances with powerful beings, and demonstrating unwavering determination and a sense of justice.