I think I have good news. You know how volume 60 has already been delayed twice? It probably won't be delayed again.
-In late June, volume 60 had an August 27 release date.
-In late July (final week, I think) it was delayed to September 28.
-In late August it was delayed to October 28.
We are already one week into October and no delay news. I think this time is for real.
If they manage to keep the three months window, ORAS is going to start in April.
Now the question is, what do those two delays mean? Are we going to get a lot of new stuff? Some special edition art book to celebrate the 60th volume? Or could it just be a result of preparations for BDSP and LA arcs? Because I'm sure we'll get both of those.
On the other hand, it could be for adding foreshadowing for the BDSP and LA arcs. Platane (Sycamore) studied under Nanakamado (Rowan), and there were French soldiers in Hokkaido in the time period LA is inspired by, so it's possible both games will have Kalos-related content.
Kusaka gets to play the games early, and in 2016 he said he played SM in September, two months before the game's release. If this timeline applies to every game, he might have already played BDSP and will probably play LA next month.
If that is the case, then this XY volume release situation is a weird stroke of luck for Kusaka. Even more lucky if we get a Kalos game in 2023 like I think we will. If BDSP and LA somehow bring back the scrapped "Team Flare are aliens" plot, Kusaka can insert retcon hints now.