Overly pessimistic, or just being (what I consider) realistic?
The frequency with which the Nintendo Direct hype train implodes upon itself is reason enough to not get all worked up expecting something grand. Even hour long directs end up showing barely anything new sometimes. We're not getting a new Pokemon before the fall, and they have E3 to show that off. Right now they have a few Pokemon games coming much sooner to remind people of, and the direct is only 5 minutes.
If, and that's a big if, we get a new mainline Pokemon announcement, it's going to be barely shown at all. I think its more reasonable to expect a Pokémon Go announcement.
EDIT: People keep asking why they "need" to discuss Pokémon VC and Pokken. Have you ever seen a Nintendo Direct? They remind you and regurgitate info all the time, especially about impending releases.