What happened to Zilan Fairy and the Monkey King in the finale of A Chinese Odyssey?

Finally, Zilan died. She took the power of the purple orchid skysuit to the limit and died with a flaming wing. Finally, the Monkey King quit his job of fighting the Buddha and turned it into a stone to accompany Zilan (at that time, Zilan had become a flower seed) and protect Zilan from frost and wind and rain.

Key point: I don't know if Zilan will eventually become a fairy. Because, in the end, the Monkey King went to fetch the Western Classics again, but this time his role was different.

The Monkey King became a sand monk.

The Tang Priest became the Monkey King.

Pig bajie becomes Tang priest

Tang priest turned into a pig.