Wasn't it partly to do with the fact the Japanese games were out first so we got the info from those. Also there is about 7 issues of corocoro left before the release so maybe they will only give us news with those. I guess it will get busier closer to the release date, To be honest though i'm kinda enjoying not knowing. Hoenn was the last region i played without knowing the majority of the pokemon beforehand.
I don't think there will be a second new Eeveelution. did you see the new ad today for the Pikachu and Friends - Slyveon was in it. I don't feel they would make a short to show off one and and not the other.
"over the laws of light, over the moon by midnight"