Notice how some people still believe there will be a reveal later on with a REAL picture of the day, and others think that this speculation was all for nothing. That's just the point. Before, everyone was sure they knew what was going to happen in some form. Now, it's a divided, uncertain thing. I honestly have no idea if there's going to be something in the near future serving as a XY themed update. I think everyone reasonable is in the same boat; you may speculate one way or another, but you have to admit that you really don't know.
To put it simply, whether there is or isn't an upcoming reveal, Sakurai wins again. The only prediction I think I can make with absolute confidence is that Sakurai will never allow himself to be easily read by us or anyone else for the entirety of this pre-release info cycle. It's really both foolish and futile to keep trying; if we were really smart, we'd just accept new info as it came and not worry about the schedule. Of course, we aren't that smart, but at least we can take solace in knowing that our collective speculative fever is likely Sakurai's main source of entertainment throughout the development cycle.