In the words(paraphrased of course) of Nancy Kerrigan,
"Whyyyyyyyy didn't this happen ? WWHHHHHHHHHHHHHYYYYYYYYYYYY ?" This looked like a lot love for both properties went into this by the artist. And would've really one upped DC's competition at the House of Ideas with the mess of their Transformers/Avengers crossover. I'm guessing that Hasbro might've been the one to nix it due to a conflict of interest over Mattel putting out DC's characters in toy form.
Also, looking at the portion of that artwork with resident DC badass, Aquaman
, fighting it out with the Piranhacon and SubMarauder. Makes me think of King Nir'Gil and the SubAtlanticans from
Atlantis Arise, and how I'd love to see them again. Last we saw the Seacons was in the second
INFESTATION crossover, they need make a return as well.