I'unno, Warsong's(/Langrisser's) stuff is pretty different from what I've seen of vids (haven't bought it, yet, but soon), and from what I've seen of stats and whatnot SoW is way more Fire Emblem than Warsong... basically all the design I've seen so far that's not Ogre Battle leans Fire Emblem instead of Langrisser, really (which is arguably disappointing, 'cause I actually enjoyed playing the Langrisser stuff I've played more than the FE, heh). Map aesthetics and design, character interactions, just... all of it has struck me very much as later age (GBA and beyond, basically) FE more than anything Langrisser.
Only thing I've sorta' seen from SoW that points Langrisser way is maybe the kinda' thirsty character sprites, if you squint at it a bit. Not sure if SoW is quite the literally-hired-a-porn-artist tier that Langrisser was, though, ha.
I'd totes be down for someone to run with more Langrisser design for another Ogre Battle homage, though. I'm... not quite sure how it'd work -- Langrisser's combat was pretty unique in some ways both then and now, and the rest of the design was decently distinct from FE -- but you wouldn't see me saying someone shouldn't give it a try. i mean, you wouldn't see me saying to stop doing anything that looked like ogre battle, so, y'know :V