I'm really concerned about the prospect of buffing Syndra
Before you go crazy with the downvotes, just read this and hear me out..
Let's remember what she was before she was nerfed in the first place. She was an extremely oppressive lane bully that scaled well into late game because she has one of the highest single target burst potential of any champion in the game. Now, I'll grant you this, a big part of what made her so abusive was DFG, but I don't think the removal of that item will suddenly make her less oppressive to play against in lane.
I know everyone is up in arms about the true damage but I don't know how much of that will really make a difference, her raw damage output was still pretty absurd regardless. Making a champion that can kill you fast have the power to kill you faster isn't usually that big of a deal believe it or not, you typically address that champions means to setting up those kills and that often came in the form of her stun, and that's what I'm mostly concerned about. Making the hitbox larger is an extremely terrifying prospect that potentially returns her to that once oppressive state in which many people wanted her nerfed out of existence.
I might much rather see a buff to her mana costs moreso than anything, giving her more raw damage probably isn't that big of a deal either but the stun hitbox scares the crap out of me. I don't know what about these buffs will suddenly not make her an oppressive Laner again, which is probably something you'd want to stay away from. I know this won't be a popular opinion, but I think buffing her hitbox is a bad idea.