Which unreleased story unit do you want to summon the most?

Def Hrid.

Bruno, for sure.

Hrid did jack shit other than be a shitty version of Ephraim (who failed at his job mind you), Ylgr was very meh. Veronica is already here in my eyes so she's a no go. Gustav is not really somebody I think we need or want.

That being said, Kiran I expect will be someday. FGO and othr gaccha's have a modifiable MU. So I would be surprised if FEH never at least gave us the option to name them and make them look unique (I doubt they'll mod their writing around our gender and just call us the Summoner half the time but better than nothing)

Bruno :)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
And Surtr with that Embla's Ward

Bruno is pretty badass looking (and hot), so him. Although the older brother of Fjorm (can't remember which one he was) was pretty cool looking, so I'd like to get him as well.

Bruno cause he’s cool and was very relavent to the whole story. But also interested to see zacharias since his class is largely unknown except we know he uses a lance.
Having Kiran use essentially himself is weird, but an interesting thought.
Veronica, she’s a good unit and an important character, considering the story progress I wouldn’t be surprised to see her in soon.
Ylgr cause she’s cute.

I as much as i want Bruno and Normal Veronica (Vantage Tome with CC? yes pls.) I'd prefer they add them when the story calls for it. I actually want Hrid, Ylgr and King Gustav because if done right, they could help in fleshing out the Kingdoms of Askr and the world of Zenith in General (because tbh, we barely know anything about Askr or the Emblian Empire and we're heading into book 3!)

Likely Bruno/Zach. Hríd is another good option.