Why would they toss him out at all? From my perspective, he seems like a good fit for Evolve and has interesting, new, well thought out abilities.
If it was absolutely necessary for whatever reason, then yes they would. TRS wants to make the game they want to play and if they came to a point where they realized ‘This just isn’t fun…’ they’d probably rework first, then if nothing can be done just scrap a majority and work off the fun parts.
Just look at Goliath’s evolution from… crab guy thing, I don’t remember the name. It looks and plays almost nothing like what it was originally designed like, but the cool things like fire breath still remain.