Here’s the progress update:
I have changed to a slim font like the Switch version. It saves space and looks better than the chunky letters. Only downside is slightly inconsistent spacing between letters.
Several new more mundane items have been implemented due to being requested in inventories: Elixirs, Killer Axes and Bows. Killer Bows appear on some late game enemies like in FE11, at least one of them is dropped. Due to Dark coming with a firestone, the Chapter 5 village gives an Elixir instead. Currently Zethan still has the only Killer Axe in the game. I want to add them to shops, but it would not be easy, as almost all shops use the same inventory in multiple chapters, and there is no way to add items without replacing others. It might be possible to repoint and expand the shop list in free space.
Then there is the Lance/Iron Lance/Steel Lance situation. The generic “Lance” item, known as that in both the Japanese and official English localization, has in various fan translations been given a material of “Iron” or “Steel.” Whenever someone asks for a Lance/Iron Lance/Steel Lance, I implement it as item 0C. Due to any class able to use lances being also able to use swords, there isn’t much of a niche for additional lances, anyway.
Prf weapons can only be locked to one unit. Thus, the Rapier is currently locked to the Lord, Richard. Larisa is armed with the originally suggested Iron Sword instead. Belinda will get the Reginleif in Ch. 5, no one’s missing out that much currently. I do know that in Time for Tom, Polinym got a shared Prf working, so it is proven doable.
Sadly, making staves give Exp is a tall order - if Time for Tom, with its many changes such as a weapon triangle and fully implemented Res stat, didn’t find it worth the effort, Curates will probably still need to get beat up to level up.
T-Sam is still a Wyvern in Chapter 7 to be able to fly away, but becomes a General by Chapter 10.
Fauchard can’t heal 10HP, its probably hardcoded to the Vulnerary. Weapon Usability in general is undocumented, the Weapon Usability Pointers have been. I calculated these pointers as corresponding to addresses 1A3FC, 1A402, 1A408, 1A40D, 1A40F, 1A412, 1A414, 1A417, and 1A41A, some kind of list that seems to be terminated by EF immediately following those pointers. This list I can make no sense of, and there’s still a large unknown area below it, continuing for over 1,500 units, where the Usability Routines probably are. Because this area is so large and the hex values for the vanilla usable weapons are exceedingly common, like A and 10, lots of trial and error would be needed to crack the code.
Funnily enough, Mercurius’ effect HAS been documented [FE1] Starsphere Mercurius? That's a lie - #16 by L95 so it would probably be possible to extend the growth boosts to other weapons such as the suggested Excalibur.
Lastly, recruitment. There is a table for who recruits who, if its safe to repoint, Mani, in addition to Dark, could be able to recruit Hati without replacing another one. The only unused one, Ogma recruiting Saber, is for whoever replaces Lorenz to recruit Edo. If not, we could sacrifice one of Venom or Richard’s non-Belinda recruitments.
I have not implemented any portraits yet, that will be one of the last things done. I’m not putting it off because it’s hard, I have an excuse. As I’m directly (and permanently) editing the ROM, I don’t want to overwrite, say, Draug’s portrait only for someone to submit a Draug recolor. So once all submissions have gone through, it will be a while until I can put in the mugs and release the patch.