Blizzard may have just teased the first Overwatch DLC character

Blizzard may very well have just teased the first DLC character to come to its new hero shooter Overwatch.
In a blog post which gives fresh insight into the backstory of the Overwatch, we discover more about its founding members.
All but one of the founding members listed are already in the game in some form: Jack Morrison Soldier 76), Gabriel Reyes (Reaper), Ana Amari (Pharah’s Mother), Reinhardt Wilhelm, and Lindholm (Torbjorn).
Related: Overwatch Beginner’s Guide
However, one name on the list is new: Liao. No images of this mysterious person exist as yet, as this is their first mention. We know they’re a founding member of the Overwatch, but that is about it.
Could this be the first new character introduced to the game? Possibly, but the very cryptic nature of the name’s inclusion gives us very little to go on.
Hopefully it’s not long before we get fresh content for the already excellent new IP from Blizzard.