High Potential Season 2 Ending Explained

The last episode of season 2 finished with a big surprise and many unanswered questions.
*Warning: This article has big spoilers for High Potential season 2, episode 18.*
The show was created by Drew Goddard, who worked on The Good Place and Lost. He also wrote the script for Project Hail Mary.
High Potential is based on a French show called Haut Potentiel Intellectuel. The main character, Morgan, is played by Kaitlin Olson.
Morgan is a single mom with a special mind who solves crimes in unusual ways.
Kaitlin Olson acts with Daniel Sunjata, Javicia Leslie, and others in the show.
What happened in the season 2 finale? What does it mean for season 3?
Nick was in big trouble at the end of season 2.
The last episode started with a body found at a hotel pool.
The victim was part of a famous couple who renovated homes. The husband was having an affair.
The killing was not planned, but the husband was supposed to be blackmailed.
Things got worse when the wife showed up and a fight happened.
Morgan was trying to find out what happened to her ex-husband Roman.
Captain Wagner shared new information about Roman and a dirty FBI agent.
A mysterious person appeared at Ava's art show, maybe Roman.
Wagner was hurt and bleeding at the end of the episode.
We are getting closer to the truth about Roman.
It's not looking good for Nick.
The latest news says Steve Howey, who plays Nick, might not be a regular in the show anymore.
But this doesn't mean Nick is dead or won't be in season 3.
The show is still looking for a new person in charge, who will decide Nick's fate.
You can watch High Potential on Disney+.