I found a video on youtube and it's an interview in which it's confirmed there's gonna be a new season
Here's the link:

https://www.youtube.com/shorts/VgRJS0WhmnQ

In the after cut, Jade's asks Akin to star in a series/movie = Akin makes a comeback.

In the earlier episodes Jade is texting a person to write a song for a series, and he's texting the same person in the last episode and the person says that he/she is coming back, and also calls Jade "my bunny" = a chance that it might be Jade's lover. They even showed a blur, old picture hanging on the wall where only Jade's face was clear.
We can also see Jade's reaction when Akin says "have you were been in love?", his reaction totally tells that he got flashbacks at that moment. 

In the after cut, there's a poster which says "just married" = Jin and Akin have been married already.
 

So in season 2, the timelines which will be explored most probably are gonna be:
1. Akin and Jin's married life.
2. Akin's comeback with the series/movie "Blood Wedding"
3. Jade's backstory
4. Jade's love life.

These are just MY speculations based on MY observations while watching the series.