Heres the thing about ALOT of pre retcon lore (even journal of justice was guilty of this) like 40% of it was "X is a mystery, but where did it originate?" Riot just left so many mysteries sitting on the table. As some examples: rammus, evelynn, the malz vs kass thing in joj, anything related to the history of the shadow isles, gnar (hes pre retcon technically), and even fiddlesticks...
Riot got away with making so many champs just have no backstory and were added in "justcuz" Right now were seeing the shit side of the retcon - shorter lores, loss of identity, and really lack of communication with riot. What we need to think about is Riot actually completing plot threads (At least thats what theyre saying...) and maybe all of the scraps were getting now are simply the nuts and bolts to hold together a new car.
Some people need to have some hope here and not just hope for riot to communicate, Riot is all about secrets and keeping things under wraps. Right now people need to just attempt to keep hopes high, and hell keep tossing neato lore ideas to riot!
tl:dr
Not all pre retcon lore was really that stupendous, try to have some hope Riot will give us something nice in the end. And lastly odds are Riot wont talk to us, but hell might as well keep tossing ideas so when they do we can have some actual conversations on how is done.
ALSO THIS WAS ALL WRITTEN ON MY IPHONE INBETWEEN CLASSES - so sorry for how awful this probably looks or sounds or how many downvotes im gonna get for playig devils advocate....