<p>it says that Diana will return in a different form. I take that to mean she will be older. It could also mean she is something other then a hexenbiest.
</p><p>I see Diana angry at Adalind for selling her to get her powers back. Adalind will convince Nick into getting Nick to have his mother return with Diana. When Kelly and Diana get to Portland Adalind will betray Nick by her and Kenneth following Nick to where Kelly and Diana are hiding.
</p><p>Diana is mad at Nick for betraying his mother and leading Kenneth and Adalind to their location. Because Juliette is so mad at Nick and Adalind being together she has been tailing Nick which brings her to Kelly's and Diana's location.
</p><p>The meeting will result in a fight where Kenneth kills Kelly. Nick is busy with a grudge match between him and Juleitte and is unable to help his mother. Diana and Adalind will be in the middle of a mother daughter argument. The fight between Nick and juliette ends when Kenneth kills Kelly. Diana distraught woges and blowes up the building. When the smoke clears. Kenneth is injured and Adalind is helping him to safety. kelly is on the floor dead. Nick is laying near her look like he is dead. Diana runs out the building folllowed by Juleitte who takes her to Sean.
</p><p>Up to this point Kenneth has been using Juliettes anger to attack Nick and friends, resulting in burning the trailer, destroying the spices shop, causing Monroe to get shot.
</p><p>Sean as the ripper is trying to keep it a secrete. Because Nick is preoccupied with the Juliette, Adalind issue. Wu, Hank and Trubel are left to try and solve the ripper case. The investigation results in Sean being shot and Wu dying. With Sean shot he has to turn to Juliette. This would be around the time where Juliette has realized that Kenneth has been using her anger against her friends. So she has broke her alliance with Kenneth. Adalind from the beginning had been using Nick and had never really stopped being allied with Kenneth.
</p><p>The season ends with
</p><p>Sean shot, Diana and Juliette taking care of him. With Diana having the last key.
</p><p>After testing it turns out the new baby has Royal blood. Putting Adalind in Kenneths good grace and they both go back to Vienna with a Royal child.
</p><p>NIck having lost his mom, Juliette, Adaind, and what he still thinks is his child. Nick goes into a deep depression. Leaving Hank and Trubel left to solve the wesen cases.
</p><p>Because of the contaminatie Diana and Juliette have a bond. If nothing else they where created and are special.
</p><p>Monrosalee are left with a destroyed spice shop. Monroe is hanging on to life with Rosale by his bed. When Nick comes by to check on Monroe, Rosale throws him out.
</p><p>Going into season 5
</p><p>Nick goes all Grimm on every wesen he meets. The keys that Rosalee had are gone. Sean is still recovering but is no longer the Captain. Juliette and Diana with one key are on a quest to figure out what happen to the two keys Rosalee had. Kenneth and Adalind are back in Vienna where she delivers a boy that is a zauberbiest, royal, grimm combination. Hank is still a cop working on the strange cases calling on Trubel from time to time. They both have to deal with Nick out there going rouge. Monroe is better back to working on his clocks. The shop is gone but Rosalee is pregnant and they are looking forward to starting their family and living a quite life. Even though Trubel still comes by as a friend and to ask questions, since the trailer is gone. Juliette and Rosalee are no longer friends, since she blams her and Nick for the destruction of the spice and getting Monroe shot. Rosalee not having anything against Diana and Sean, Diana maintains the connection to Rosalee.
</p><p>The season will be Julliette and Diana will trying and solve the mystery of the missing keys. Because Diana loved Nicks mother she feels like Nick is her brother and tries to help him get himself back together. Trubel and Hank will call on Juliette's hexenbiest abilities to help with cases. Diana is to young to use her abilities even though they are really impressive. Even Juliette will help Nick try and get himself together.
</p><p>The main story arc will be about the keys and the coins. Both tied to having the ultimate power. This power grab will bring Kenneth and Adalind back to portland. With Kenneth raising Adalind son as his. because the child is part Grimm Nick still thinks the child is his. Even though the child has Royal blood which brings Sean into the picture.
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