As if the evolutions weren't one of the best parts of Gen IV...
I would be more than happy with 70 new Pokémon... if it didn't count 20 or so new evolutions on the side.
I can't believe we're going two entire generations with no new evolutions besides Sylveon. Utterly depressing.
Aw, well, I guess I can still get excited about the unrevealed Mega Evolutions...
EDIT:
I absolutely agree. The roster is starting to become way too bloated. There are too many Pokémon occupying the same gameplay niches (we didn't need another weak Bug/Flying, Vivillion...) and it increases the barrier for new players. I'd rather there be a focus on quality over quantity. Evolutions are one of the best ways of going about that IMO, but I think Mega Evolutions are a very healthy alternative if given to the right monsters.