Today, there's no doubt that the second season is indeed in the can, with star and producer Reese Witherspoon tweeting that this was their last day on set:
Feeling so grateful to my #biglittlelies family on our last day of shooting Season 2 ! 🌟You all have inspired me , supported me , made me laugh& cry . You made this second season even more exciting than the last ( i can’t wait for y’all to see it!!) Thank you @HBO !— Reese Witherspoon (@RWitherspoon) August 17, 2018
We can't wait either, Reese. Next step: teaser trailer.