Argh, no new types please. We're wayyy too far down the line to be introducing huge new things like that. So many of the types existing now, if they introduce a new type there would have to be a ton of them to balance out. Since that's unlikely, they would either have to re-classify existing Pokemon (awful) or just accept the fact that there would be very few of the new type, which means in the metagame that either no one would use them or EVERYONE would use them. Seems very unbalanced.
"I'd tell you to buy a clue but you don't have enough cents."