Did we just get a tiny spoiler for the "shake up" or just a new lore event ¿

This was posted on twitter

And as you can see the translations (translated by the guy that posted it ) 2019 season tab on game client updated Day 2 - Ranked&Gameplay Day 3 - Champion Day 4 - Universe Day 5 - Skin&Event Day 6 - Esports

Universe most likely means the universe page. Are we getting the "major shake up" on day 4 ¿ Right after Sylas, it shows a giant dragon on it. Could it be Shyvana ¿ also in front the giant dragon that is on that little window we can see an archer ¿