Uh question: will you also add characters from the manga? would be cool to use Gant, Tiena and Al.
Honestly? No probably not. Hasha no Tsurugi read like a self-insert fanfic a lot of the times, Which is going to happen when your protagonist is a Half-Dragon descendant of a legendary hero (as in DIRECT) and the actual characters of FE6 play a bit role to the cast of the manga. But I digress, I don't really see a point, although you're welcome to pitch the idea to me in a way that sounds appealing, and then I would consider it. But on my own preferences? Hasha no Tsurugi can go suck an egg.
Who knows though? Maybe my impression of HnT was just a first impressions thing, and I'll like it if I read it again.