Will we eventually get an overview of what is now canon and what is not anymore?

Pretty much the question in the title. I didn't like the radical lore retcon decision, but I do understand the reasoning and the aims behind it, so it's not that that really bothers me at the moment. What really can't be understand in all this is the fact that Riot suddenly dropped on us the big retcon bomb, with the IoW not being Canon anymore but... they filled not the voids that leaves in the story they suppose us to know yet. Maybe it's me drawing hasty conclusions, but the third part of the Reborn teaser is just confusing. It seems we're supposed to know about Darkwill demise, Swain's rise to power and the Kalamanda story arc, but the IoW played a major role there. So, what? Do we just erase from our minds one half of the story? What about dangling bounds to the institute? The time freezing to avoid war didn't happen then? Did Swain act and plot with only the Black Rose? Also, were Demacia and Noxus supposed to be both doing business in Kalamanda without getting in a war even without the IoW refraining them to do so?

Getting back to the title's purpose, I do really wonder if we will ever get some piece of paper about what is canon now and, most importantly what is not anymore! Like, you know, some kind of "lore 2.0 patch notes". And some popcorn with that too, it would be nice of Riot.