I posted this last week on reddit, and it had a good reception, so I thought I’d post here too.
Here it goes, let me know what you think.
Tannis and Ava have uncovered a secret inside Maya’s Book of Storms. They realize there is a way to open a portal to the Siren underworld and meet with all the sirens that have existed. Two Sirens are required to open it, so Tannis and Ava are forced to stay in Sanctuary for the time being.
Join Krieg in a rescue mission in order to get Maya back to the mortal realm while avoiding those sirens that wish to do so. There, you will meet the Calypso twins again, Commandant Steele, and Angel. You are recieved by Nyriad, which will help you tranverse this until now forgotten world while giving you information about how Sirens came to be.
Join Krieg in a fit of rage to the realm, while meeting many dangers, but it will be worth it in order to save his love.
EDIT: Some clarifications: this is just a premise, its made to see how many people would be interested in something like this and in no way is the whole story. The main purpose of this idea is to give more screen time to those characters that deserve it.