So right now we have regular gremlins who do pure normal and no status (well, stun technically), and the scorchers who do fire status. It's a bit silly to come upon a status-themed decon zone to find that the only thing status themed is a few gun puppies and mechaknights.

So I propose the following:

Poison Thwackers/Bombers: Similar to normal, but with a greenish aura and wearing those surgical masks that people in east asia wear when they have a cold. Regular hammer/bomb attack would be split normal/elemental with a chance to poison, and add a small AoE "sneeze" attack that leaves a poison cloud and, in the case of the bomber, makes them spaz-drop a few bombs.

Shock Scorchers/Bombers: Replace the scorcher's welding torch and tank with an appropriately stylized arc welder and something like the gizmo on the back of the mercurial demo suit, and give the bomber a large car battery type thing on his back. Shock scorcher attacks would be roughly in line with the regular scorchers save for being shock themed obviously, and similarly for the bomber.

Freeze Thwackers/Bombers: Mittens and scarves all around, add chance to freeze to the regular attacks.

Fire Thwackers/Bombers: Thwackers get redone to look like they're fresh out of the forge with a scorching hot hammer. Bombers get a backpack full of moonshine molotovs.