Superman and Lois showrunner Todd Helbing talked about the future of Arrowverse crossovers. Once Grant Gustin debuted as Barry Allen on Arrow, the Arrowverse was born and led to several crossovers that became an annual event. The first pitted The Flash and Green Arrow against one another. Eventually, we got to Crisis on Infinite Earths. At the time, it was thought that the Crisis on Infinite…
View original article here Source