I really like your idea for a "Season 4" of LEGO Legends of CHIMA!!! (I want Laval to become evil SO badly here!!!!!) Alas, it's been almost 3 years since the LEGO Legends of CHIMA theme ended there; however, maybe there's a chance for a movie, but only time will tell...
The ending of Season 3 of the LEGO Legends of CHIMA animated T.V. series made it so that a Season 4 (or even just an animated movie or animated T.V. special, for that matter!) was absolutely essential there; but no, The LEGO Company and Warner Bros./Cartoon Network just HAD to tick off LEGO Legends of CHIMA fans (like me) and end it prematurely there!!!!!
It is part of the canon if it is a scene in one of the episodes by default!
There should be a pencil icon below your post where you can edit and add onto your it. If you want to reply to someone directly, just tag someone using the @ sign. Hopes this helps! - Cocoa