>>43704551Man, anything they think they can salvage as a pokémon, they withhold till a later Generation to see if they can fit it better there (Leafeon made for Gen II, released in Gen IV). When they show off a beta design, they're admitting it CANNOT work with the world they've created at that stage, they've given up trying.
If any of those designs were truly any good, we'd have gotten them or a revised version of them at this stage.