Finally came the expected TFT Set 4 Origins and Classes became clear.
You can find classes and origins below, rather than from this list as pictures for Set 4.
TFT Set 4 starts with 13 origins. These are as follows:
TFT Set 4 starts with 13 classes which are as follows:
Other details will be added to the article later.
TFT Set 4 origins and classes will be added to PBE as of September 1, and will be added to real servers on September 16 with 10.19 patch.