These raids have a max level, either to farm them or receive rewards.
With how pet Clvls works, maybe mobs can get the same thing. This could bring back the challenge we had on those old raids and fun, without having to find mates to build low level alts to play it at the intended difficulty.
Maybe some mobs can get the capture option, and start at a higher tier while not requiring extra component (ex: Grab a chicken already at 2*, without having to use baits)
Rewards can be some better rarity boxes, 'exclusive' thematic pets (like getting some jelly pet from cuby, the boss as a mini pet ...), shards (to craft again the raid) ...