First, a 'fic update: I think I will, to save myself the hassle of rewriting, put a couple of 'fics on hiatus until FE12 is in my grasp. Specifically, Chapters 5-Infinity of "No Saint to Follow" and Chapters 4-5 of "Trinity," because the mental gymnastics required to unite FE11 (as I will henceforth term Shadow Dragon) with FE3 are taxing, tiresome, and possibly OOC. Now, I have enough written of both that if FE12 does things that are not to my liking, I'll say "screw it" and go with my original plans and a pile of disclaimers. But for the time being, I'll sit back and see what canon hands me in terms of the War of Heroes.
Also, IF the Hero of Shadow is a Tactician, and the Tactician does to Archanea's fiction pool what he did to Elibe's, I will have no qualms whatso-bloody-ever about writing some of the things I was planning to write in "No Saint to Follow."
"Dark Sun of Desire," on the other hand, can go along unchanged since it's postwar, mostly set in Valencia, and doesn't depend much on interactions that take place during the actual game events of FE3 Book Two. Ditto for Chapters 2 and 3 of "Trinity." Same goes for all the Unified Kingdom stuff, as I already made up my mind as to what happened in that fic-universe and it's not changing now.
[I admit to being amused that Marth gets the epithet of "Hero King" right off the bat in the FE12 teaser. I thought that was used in one of the FE3-era timelines rather than any of the game scripts, but as a functional epithet it's less embarrassing than some of his other titles, so I've used it often in the Unified Kingdom 'fics. And it looks as though I will keep doing so.]
Next I will likely rant about the fanboy obsession with Lord promotions and why it's nonsensical.