I'm not sure but the update should come between February 26th to 28th. And the update will be the conclusion of the halloween event. Updates to old characters like Black Cannary, Huntress, WonderWoman, StarGirl and Hawkgirl will start in April.
So why the Dev doesn't update lois content anymore?
Because there are a lot of characters that are in front of her. I have already mentioned some old characters above and there are others to complete. For example: Starfire, Blackfire, Galatea, Princess Audrey, SuperWoman, Killer Frost, Mercy Graves, Harley Quinn, Lois Lane, CatWoman. Gunsmoke Games are putting content out little by little.
And there are still many bugs to be fixed in the game.
Exist (or existed) a bug with batgirl in bordello, we also had a bug with Supergirl. It is not possible to change the clothes of Terra, because it does not have. Some characters like Terra and Vixen, do not have naked dance scenes in Glamour Slam. Anyway, there are many things to fix or conclude.