>>35415040TPCi usually does its own reveals and information stuff on its own time. If its anything like Gen 7, we'll get something a few weeks prior to E3, then have a live demo with the Treehouse employees like they did with Sun and Moon with a minor reveal of a new Pokemon or something
We may not know the titles, but titles alone don't offer much beyond the knowledge that the games exist, and in that regard we've known the same amount of info about the Switch games as we did for Sun and Moon during its reveal (difference being that was 3 months of nothing until info and its been about 10 since last E3)