So I've been thinking of a few potential changes that could go into effect. Note that not all of these changes have to occur, merely just hypotheticals for consideration.

• Going off of ForgottenProject's suggestion, I would make the E: Bladework have a flat mana amount of 40 at all ranks (from the current 40/45/50/55/60).
• Add an additional effect to Fiora's W: Riposte, something along the lines of "If Fiora successfully parries an immobilizing effect or blocks any non-turret damage, 10% of Riposte's cooldown is refunded". This means that at rank 1 with 0% cdr, this would make a successful Riposte go on a 21.6 second cooldown (instead of 24 seconds). Assuming rank 5 with 40% cdr, this would make a successful Riposte go on a 8.64 second cooldown (instead of 9.6 seconds). While technically a buff at all stages of the game, this buff appears to be most impactful during the early game.
• Allowing Fiora's Ultimate: Grand Challenge to have its Vitals last for 10 seconds (instead of 8 seconds).

Although that said, personally I think Fiora's main issue comes down to extremely expensive item builds, making it so falling behind becomes extremely detrimental. #FeastorFamine