Love the theories n clues discussion still overflows.
The story actually emphasized on the heroine journey, so if there would be session 2, YWS would be still alive safe and sound. About the story expansion, it would be opened wide. Has a theme of outerspace items, it could lead to fantasy/time travel theme too (but the feeling will change anyway)
About willing to die or even rumor to die, in this my journey to you universe, all was uncertain. Unless there was a scene that told they were all ending their stories, the characters fate were still open to explore.
Regarding the originality, it was like a fresh start for Guo Jingming who had a plagiarim scandal before, showing his talents and originality. That he could create something fresh, interesting, and original in all directions : story plot, costumes, episodes length and editing, camera captures and angles, fights and kungfu styles, balance screen time- all casts had important proportions. He usually tent to make his work sad ending, so in this drama, he was kindly merciful to change into an open ending.
Session 2 always has a chance. based on demand, appreciation, legal policy, and of course :fund. As long as IQIYI still exists, they can make the sequel.
Take an example of Joy of Live with similar vibe of originality (it was Tencend original in 2019), finally they made the s2 and 3 in this 2023, scheduled for release in 2024.