I fervently believe this is the right spot to post this so here goes on suggestions/ideas/wish list...
Shield patterns. Shields are an offhand and basically made the same way as weapons (it was even demonstrated in Forged in Fire if you watch that and willing to post a link here if that's allowed). Unlike normal armors that require several parts and pieces, shields are just the handle the shield bit itself. So shields of various sizes could be made since you'd just need the handle glyph and then the shield glyph. If this was allowed, you could also have more Blacksmith companion books for them.
Hybrid weapons glyphs. ie: katanas, warsword (two and half) etc.
Last but not least: would love to see armor smithing as opposed to the normal weaponsmithing. However; I would envision armor to be more complicated and thus you'd have various glyphs for the pieces and at the end to combine those pieces together - perphaps through adding those pieces onto a maniquin or something and when you have all the pieces to do some verb action that puts the armor together?