Tracer is already one of the most popular characters in Overwatch, one of the most popular video games of today, so it makes sense she’ll still be popular in the future.
They’re surrounded by some skeleton creatures and who might be Lara Croft and Solid Snake in the back.
Next to her, we see a charging Chun-Li of Street Fighter fame.
While we fully expect most of the references to pop culture from Ready Player One to focus on the 1980s, the fact is that the movie takes place decades in the future, which means current pop culture will also be “nostalgia properties” by then.