This is still planned to happen to my knowledge. However, this is not happening yet and I am sure there will be full details about it when/if it happens.
Being an offically hosted scenario may not nessecarily make it part of the lore however, especially if it goes against the conventional lore. It may just have a warning label attached that it isn't an official scenario, just officially hosted
But as I said I am sure that full details will be announced if and when this happens
-Calebrien