>>56018450I think the next trend should be go back to the series' roots in breeding; PokeMules, keep it simple. Like Phione, but with more creatures.
For example, making a Ponyta and a Zebstrika breed would make mule Electric/Fire pokemon.
Or another Ground/Fire type/Ground/Electric type if it's a Mudsdale/Rapidash/Zebstrika, and they could evolve into their own separate lines, and you could have more interesting combinations, like regional variants breeding with each other, or ghost type 'mule' lines that make different possessed creatures, like a Ghastly that lives in a different cup if you breed Gengar with Sinistea.