Edelgard is now my favorite lord in the series, and I desperately need this girl in Smash.
I won't get into the intricacies of her character, obviously that doesn't really matter in Smash, but what does matter - moveset potential - is also of equally high quality with Edelgard.
Without getting too customizable, Edelgard focuses mostly on axes and heavy armor. She also has Combat Arts, her unique Crest, and Battalions to take advantage of. I'd assume she'd use her pre-timeskip design, so she'd likely not be a slow character, but probably around Ike speed if I had to guess on something that doesn't exist.
Her specials I'd imagine would be something like:
Neutral B: - Battalion Charge - Similar to Zelda's Phantom charge, Edelgard can command a Battalion forward to launch an explosive vehicle forward. The longer it's held, the further and more powerful the Battalion is. Without charging, Edelgard can instead send forward soldiers who will drag opponents out like Piplup/Oshawott, though less powerful without having a lot of damage built up.
Down B: Crest of Flames - Edelgard imposes a self-buff effect which allows her to heal half the damage she inflicts on her next attack, (With a cooldown of course) and also functions as a counter while it's being activated. Not only does the 'nullify enemy counterattacks' work as a Counter in Smash, but we all know an FE isn't allowed to not have a counter
Up B: Raging Storm - Edelgard thrusts upward, causes a self-encompasing gale to lift her up. Doesn't send a hitbox below her like Robin or Hero, but instead goes from her body upward, so it can catch opponents trying to hit her from above.
Side B: Armored Blow - Edelgard dashes forward with an overhead strike, having super armor the duration of the attack. Think Bowser Jr. and Ike, except it's a dashing overhead swing that goes less distance but has armor the entire duration. She could use this to recover safely and to punish from afar.
For her normals, I picture some functional similarities to Ike in speed and power, but her axe hitbox should differ the two. While Ike uses long, slow, area-covering slashes, Edelgard would use strikes and slashes more than long swings. So less moves like Ike's forward air and nair, more like his Ftilt and dsmash.
I really, really hope she gets in, whether it's in this fighter pass, or by some miracle, a 2nd fighter pass or even the next Smash game.