If we got a Shin Megami Tensei x Fire Emblem crossover, and that one weird Pokemon x Nobunaga's Ambition crossover on the Nintendo Ds, then a Shin Megami Tensei x Pokemon crossover would make even more sense!
...Although both games seem to target vastly different age groups. I'm not sure how a parent would react to their child playing a Pokemon game where Jack Frost keeps calling them a "ho" for some reason.