Thanks for the amalgamated post!
Looks like Baal is about to get a facelift from Tyranids:
As well, it seems like Ghazghkull is making a comeback/some of his history is being retconned as well:
Heck, there's even mention of massed Necron forces:
So stoked for the coming developments. The next BA book from Guy Haley is rumoured to be called "The Devastation of Baal", so who knows what's up for my most cherished Chapter.