Well how the fuck that story got approved for print is beyond me. I don't know who can read it and think "GREAT IDEA, IT MADE ME TEAR UP AND IT 'GETS' THE SERIES ---- RUN IT FOR COLLECTORS!!".
A shame since i think the Farplane is the most interesting/underplayed element in that series.
I really hope if X-3 happened, it wouldn't be a "Here we go again!" to get Sin killed.
If so, just set the nukes off on the planet -- it can't be saved.
"Yuna Returns: FFX-3. Spira's turned into a crapsack world once more and there's only 10 days remaining before it all ends, so its time to help Yuna end it once and for all by gathering all the souls and sending them to a far away alternate plane called France and then have her punch God back into the dying reality with the power of friendship gained from awakening her friends/former allies."
Couple more Fire Emblem chapters. Turns out Nephenee is a SUPERBEAST. Best unit on my team other than Ike. Kieran is okay and I probably won't continue with him since Boyd has turned it around. I'm going to keep using Mist only because I heard she's important in a later chapter. I'm going to have Jill, Astrid, and Zihark gain a few more additional levels before I decide whether or not to use them, but my initial impressions are good. Already like Zihark better than Mia.
Sounds like you're coming up on the desert chapter. You may want to have a look at this
As for your latest recruits. There are no actual Mercenaries/Heroes in the Tellus games since Ike/Greil more or less made off with the class, instead you have the Lance flavored Soldiers and their promotions Halberdiers. Nephenee is one of those, and by far and away the best of them. She's one of the best characters in the game (and a good one to get to --/20 for FE10 for reasons), and free Wrath is amazing (you just need to pair it with Vantage or Resolve for absolute hilarity). Kieran is Boyd on a horse which immediately makes him better than Boyd, Gamble sucks, but you don't even need to promote him to get him working on his Axe rank and he could always sub in Bows or Swords to compensate for his lackluster Skill. Brom is there, and he's supposedly even beefier than Gatrie, but he's a Knight and that's always a problem. Zihark is debatably better than Mia thanks to free Adept and having access to Male Swordmasters' caps, but his availability isn't the hottest and there's an even better Swordmaster just around the corner (seriously, take a look at that link above
; preferably before Chapter 15) (that said, he's a good fella to take up to --/20 for FE10 for reasons). Jill is pretty much the best character in the game, full stop. She's on a flying mount, she'll get Axes, once she gets going she'll have the Strength, Speed, and Defense to stand with the best of them, she comes with a Laguz Guard (a nice item), and though she doesn't come with any skills, that just means that you can do whatever with her once she promotes (and like Nephenee and Zihark before, she's also worth trying to bring up to --/20 for FE10). Astrid, say hello to the best bow user in the game. Like all default bow users, she'll need some effort to bring up to the party's standard, unlike the other default bow users she's A) on a horse, B) can promote into a Paladin, and C) is sporting Paragon by default, so just forge her a Bow and watch her go to town (also something that the game doesn't say but needs to be said anyways is that the Knight's Ward also carries with it a small boost to Skill and Speed growths; you might want to stick it on somebody who could use the extra growth in those areas). Gatrie is back for good this time (well until FE10), but unfortunately he's not as good as he will be by FE10, useful if you want to stick Provoke on him or something but Generals aren't that good in this game. And Sothe is complete garbage in this game, he's only useful if you really need that second Thief on the field, but otherwise avoid (don't even bother leveling him up for FE10, his bases there will be better there than anything you could get out from him here).