Guys don't worry, Lordaeron/Quel'Thalas revamp will come later in the expansion.
They haven't added any system at all. No, colouring a stupid dragon isn't a system. This means they'll have more resources for meatier patches. Don't worry, the time of Quel'Thalas and Lordaeron will come and with it will come the time of the Void and the Light.
The speculation and theories from 9.2.5 will pay off in Dragonflight, you'll see.