Regarding "Z",
a few days ago, TV Tokyo suggested via an announcement for a TV event on December 24th that Ash's League battles will be broadcast during 2016. Not to jump into any conclusions, but that should mean the Kalos arc may be ending in 6 months or so, at least as far as the XY content is concerned.
The Z era is moving forward without a game announcement, and the XY media coverage seem to be close to being wrapped up. I suppose that there's little sense in speculating before the next CoroCoro, but it's still interesting to think what Kalos League being done by July/August could mean for the series moving forward.