So, now that we have had mega evolution for a while, do you think you could make some mega-evolution designs for some of the pokemon on your ‘worst pokemon’ list?

Eh.  To be honest, designing mega evolutions for things is not something that I find all that interesting.  And I actually did sketch out concepts for evolutions for most of those Pokémon, so, like… it would kind of serve exactly the same purpose as what I did with them in the first place.