Well, that does sound a lot more intriguing than the failed-romantic-comedy duo we've currently got! (Even if they are ever so fun to watch in that mode....)

I wonder if they could get brought back into a more serious storyline at some point? The Ninja questline continues to involve the Rogues' Guild (and Carvallain even inadvertently kicked off the Stormblood chapter of the story by rescuing some "Doman refugees" who turned out to be the villains of the piece). Or a potential hook into the Machinist story via Rostnsthal? Which leads back to Ishgard... though come to think of it, neither Carvallain or Rostnsthal want to be in the location where the other is.

But... all the plot with Carvallain and Rhoswen is going on in 1562? and seeming much the same as they are in the current time? Are they both already captains? Because it occurred to me previously (when trying to plot Carvallain's timeline relative to other known dates) that he'd only be 19 at that time, barely a grown adult by Elezen standards. Which just seems an odd idea - not that he wouldn't be capable of being a mature adult mentally before that point, compare Alphinaud - but still a bit strange. And given all the other weirdness going on with his family's timeline..... well.

I did wonder previously if his stated age of 34 could be a bit lower than it should be - say if he was actually 19, not 14 when he ran away, but since Elezen still look young at that stage, he lied about his age? (Even moreso if he's trying to distance himself from his actual identity and doesn't want anyone hearing that a 19-year-old noble is missing and putting two and two together...)

Still not enough to wrangle the timeline into making sense with everything said in the AST storyline, but it could just about scrape everything into a functional timeline if they wanted to maintain Jannequinard being two years younger than Carvallain - making them 39 and 37 would just work for the twenty-years-ago AST plot, making Janne 17 instead of 12. Kind of what the lorebook tried to do by saying it happened 15 years ago, but working in the opposite direction.

please forgive my endless fixation with this timeline snarl...