This means that, as of this writing, the wait for Wonder Woman 2 is roughly a year and a half away.
Add to that the fact that the release date gave DC time to solidify the story and get the script right before filming, and November 2019 feels like the perfect time to release Wonder Woman 1984.
Beyond that, compared to someone like Ben Affleck (or whoever ends up being Batman by then), Gal Gadot is still very young (she was 32 as of Wonder Woman’s release), which means she will remain physically able to stay in the role for at least the next few years.
And, that wait seems plenty reasonable among the other sequels in the DC Extended Universe.