More Jean teasing as pictured below. Despite much of the backlash Jean got in the 2000s from Marvel editorial who said she was better off dead (which is why I'm worried about Tom Brevoort because he used to regularly troll Jean fans about how she was never coming back), there were many writers who did love her and wanted to use her. Bendis is the most high-profile example.
He wanted Jean to be part of the New Avengers along with Wolverine. His run was all about bringing back popular 70s characters like Spider-Woman, Luke Cage, Iron Fist (notice they were all written by Chris Claremont), and of course Jean was the epitome of the 70s as Phoenix. Bendis even inserted her into the origin of his pet character, Jessica Jones.
Marvel said no, Jean's staying dead. Imagine, that because of one character, our Jean had to remain dead for 14 years. Marvel was so worried about the "damage" she would do to Cyclops with her mere presence, that they couldn't even fathom the idea of having her leave the X-Books and at least be a part of the Avengers universe at a time when the Avengers were Marvel's biggest push. That didn't stop them from teasing her return in Secret Invasion and below, where you can see that Jean and Logan on an Avengers team is what Bendis wanted and to have them paired together as a couple. This was the closest he could get to that by teasing what he wanted but was forbidden to do. We could have seen Jean in an ongoing, maybe even multiple books, working alongside Captain America, Spider-Man, Jessica Drew, Carol Danvers, and Doctor Strange, to name a few. When MCU fans would read the comic books that their favorite movies would have inspired, they'd have seen Jean front and center and been introduced to her. None of that was allowed to be so it was never about the "right story" that could bring her back. It was always about the people in charge admitting to not liking her and not wanting her back, even when some of Marvel's most prolific talent was eager to use her. I wish we could have seen Jean on the New Avengers and only see Bendis write the real Jean Grey and not just Jeen.