Official announcement regarding a patch to pokemon home and pla/bdsp inter-compatability in correlation is a given...
But in case you noticed the tcg trends in parallel to the vg trends, esp. one that involves the lack of abilities and the introduction of new species that were introduced after the start of gen VIII(the last time a species was introduced mid-gen was all those years ago: in pokemon xd, we got munchlax, a pokemon you can't send to the gen III games that pokemon xd was compatable with) we could be due for announcement of a new gen. Unless they find a way to patch bdsp to add the new species to it, which is unprecedented and impossible unless the coding's already in the game, then the only way pokemon like Kleavor can be migrated across regions is that of a new gen. I wish we don't have to deal with a similar scenario to gen II's time machine in the sense that no pokemon with a dex number above 493 can be traded(back in gen II, it was 151 instead of 493)...
But in the event they find a way to implement changes on those pokemon to blend in with the other titles' pokemon, it still might require a process that was used once before(to address mechanic issues that blocked Gens I & II: Original GB edition from Gens III-VI), as the differences from the effort level system that pla uses, in contrast to the one used in previous main titles, could mean we have a similar scenario to that of the transfer process of gen I-II 3DS VC titles to gen VII titles(via Pokemon Bank), in the sense that effort values in the games mentioned in the former were eliminated upon transfer to those mentioned in the latter, and natures were determined by remainder of exp. divided by 25. But as natures are stated this time(though I was deceived on that part at first), you can't manipulate nature this time, but still...
...with the observations stated, I believe this direct should answer these questions: How will the differences between PLA and prior pokemon titles impact Pokemon introduced in PLA? Can you transfer new species to bdsp, or do we have to wait for gen IX to see what abilities they have without hacking into their coding in order to find out? And will Pokemon replace the current effort value system in place from gen III-VIII in favor of the newly introduced pla system for gen IX?