In D1 during the age of triumph there is a grimore care about her. She’s talking to an out cold Asher Mir (apparently the two are friends) and says that she has to go somewhere. The best anyone can figure is that this happens a couple months before the attack on the tower and most likely has something to do with her final scene in the Taken king DLC. If she does return I’m guessing it will be with a hive based DLC.

Where should I start... Eris is just one of many characters where I wonder why they were seemingly abandoned. "Oh it's a sequel we desperately have to create new characters and throw other ones away!" - Bungo - The Speaker was never mentioned by the Vanguard since Homecoming, where Ikora went to get him, then ended up on Io. - Shiro-4. I liked him a lot. He had a balance between seriousness and jokes. Like a more serious Cayde. I miss him. At least Saladin could say a single line about his status. - Variks and Petra. Only through a Telesto ornament called "reef in ruins" you can imagine something happened there. But it's very unsatisfying. Also, on consoles, your Ghost recognizes the Fallen banner and says we worked with a Fallen. Yeah so uh, how about someone looks for Variks? - Ouros. The Sunbreaker Clan on Mercury just got wiped out while the Traveller was "offline"? That's it? There goes our chance of seeing another Titan leader. Instead, we got Sloane. D'oh! But at least we got some Ouros quotes. - Saint-14.. well, the shotgun has a fitting name. Perfect Paradox. I can't be certain what the hell this is about. I'd say he may still be alive and that we only saw a simulation of him. But it's weird time stuff, and Praedyth is still lost in the Vault of Glass, so there's not much hope. - Saladin once more only returns for the Iron Banner and has no words about the SIVA Crisis and us. I liked him as a more active person in Rise of Iron. - Speaking of which, Saladin is titled the last Iron Lord now. So, what about Efrideet? I didn't really like her teen-behaviour, I have to admit, but that statement contradicts her. And Efrideet also had a weird story about some friends far away. I don't know man. D2 reminds me of the new Star Wars trilogy... new creators just feeling the urge to kill or abandon characters from another installment. In D2, many things are just uncertain and you never know if some characters are even returning. That sucks. I'd trade in Hawthorne, Failsafe, Asher and Sloane in for Petra, Shiro, Variks any Eris any day.

Eris morn and asher mir have been communicating as seen on a lore tab, she had asked him to look into a hive god (can't remember the name) who was first heard of on a scannable on board the dreadnought of a stone figure standing opposite oryx and crota. I believe she is on board the dreadnought, investigating the hive. We also know we will be returning to the dreadnought soon in a further expansion along the line. What we don't know is if she will be a friend or foe.we know that asher mir is having complications with his vex arm, developing a mind of its own. As eris has been in the same situation except with the hive instead (her eyes replaced with those of an acolyte) there is the possibility she is slowly succumbing to the hive too. So, will she be a friend? Or our future enemy? Eris could also possibly be the one controlling the taken.... Just a thought 😉

Killed by cabal drop pod

She was folklore

I like Eris for the female characters and NPCs you interact with during the game, she is my favourite. Lots of depth, creepy, and an almost forbidden knowledge of the hive. Ikor has an identity crisis. First she's a geeky book smart warlock. The two years latter we find out she's a crucible God. Yet, when the Red Legion invades she runs away in anger and is afraid to give up her last life. Hardly the stuff of warrior legend. Petra. I like her, but she's got no personality. A simple loyal solider. Tess. 'Nuff said. Eva. No story to her. No real need for the character either. Amanda. My second favourite. A normal human working the hanger at the tower. While her character doesn't have a lot of depth, what you have to work with is all she needs. Tera. Book smart without the identity crisis. But unless the awoken can live for hundreds of years, she is gifted with the light but was never granted title of Iron Lord. So she does have a small plot hole of how come she didn't die of old age. I would like to see a bit more story from her. How is it she was a Cryptarc for the iron lords and is still alive today? Where did she go when Saladin closed the iron temple? Hawthorne. Her problem is she's trying to steal Amanda's thunder. Another normal human, whom is a great leader working in the tower. At least she got character development. She went from Anti-tower to willing to work in the tower and support Guardian's. I will skip the postmaster because you have no real interaction with her.

https://www.bungie.net/en/Forums/Post/243735305

Wher's the reef? Petra? Sparrow horns? I hear Mars is near.

At the moment I think she'll return with the fall DLC, having been researching Savathun or something like that.