I have no idea what's happening here, but it's retconned anyway, so just enjoy the sentiment.

There's two more Legends of the Dead Earth annuals next to me, and I have to dig the Aquaman and Starman ones out of my garage--yeesh, that'll be a job! But I found this one in a great haul today, in a fancy archival holder, that I went ahead and popped open so I could cram it in the scanner: from 1996, Sovereign Seven Annual #2, "Memento Mori" Written by Chris Claremont, pencils by Rick Leonardi, inks by Klaus Janson and Steve Mitchell. 

I know I read the first issue of Sovereign Seven back in '95, and I'm pretty sure DC getting Claremont was a coup at the time. Before that, I know I had been reading his Aliens/Predator: Deadliest of the Species, which was hindered by being a bimonthly limited--twelve issues over the course of a little over two years--as well as hitting some tropes he had already used in his X-Men years. Anyway, I'm going to compare S7 to a book from one of his former collaborators: Marc Silvestri's Cyberforce #1. Both those first issues are polished-looking, throw a ton of new characters at you, that already have their own history and team dynamic, as well as bad guys that have seemingly been fighting them for years: both of those books wanted to be X-Men, right out of the gate, without doing the tedious business of years of setting up. Neither would get there, although to be fair, Cyberforce has run sporadically in the years since; while Sovereign Seven would wrap after a three year run, and be retconned away from the DC Universe. (The book was creator owned, so it couldn't be used elsewhere, which may or may not have hurt it.) 

This issue, at the Crossroads Coffee House, it's the end of the universe, and one of the proprietors, Lucy, watches the last star burn out. Well, they had a good run; and she reminisces over the night they first met the heroes of Sovereign Seven, which, in linear time, depending on what theory of the end of the universe you subscribe to, could've been several trillion years ago!...you might hope something else memorable happened in that time.

But, the house band shows up, then more and more, as various memories of events readers wouldn't have seen yet pass by: Aquaman dueling Fatale, for reasons not yet known. The wedding, and death, of Cruiser. Rampart defending Christians against his fellow Muslims, then later becoming President of the United States! Cascade, enslaved in the future, by Network, which somehow involves Saturn Girl of the Legion! (Cascade is either telepathically forced out of her armor, or cybernetically hacked, and forced to kneel like a dog before a dominatrix-like woman: even in a Claremont book, that's a really Claremonty bit!) Nightcrawler-lookalike Indigo shows at the coffeehouse to try and cheer up Daisy, who knows he was long dead, but he seems to think not. Likewise, in the 30th Century, a Kitty Pryde-type rescues "Summer Grey" from the government, and she really looks like Rachel Summers! (By that point, 'Network' seems to be a resistance group against an oppressive government; although having not read the other 35 issues or the Sovereign Seven Plus The Legion book, I could be wrong!)

The overall effect, for me anyway, is like the Simpsons episode "Pygmoelian," where thinking he's going to be written off of the soap opera he was starring in since becoming handsome, Moe conspires with Homer to get even, by spilling a ton of the soap's "top secret storylines." I find it weird when writers do that, you might be able to use some of that stuff later.

In the end, after a night of memories and friends, including cameos from Deadman, Lobo, Enemy Ace, and more; the cosmos appears to be starting up again, a brand new day. "The world will end but love and music endureth." Hey, nothing wrong with that.