Methinks that he is discreetly pitching to Disney with this artwork, reminding us and them of the dropped project....
on the recent red carpet for alita battle angel, James Cameron was asked about Neill Blomkamp's Alien 5 project and asked specifically, to get involved, he said he was working on it. which may indicate he's trying to make the film happen and to resurrect the cancelled alien 5 movie.
Although Neill Blomkamp's Alien 5 project (code named Red Harvest) has been indefinitely shelved and its fate remains unknown pending Disney's aqcuisition of 20th Century Fox, we still have a rough idea of what the film might have looked like! Just recently Blomkamp shared a photo of an Alien Xenomorph sculpt which was created by Alec Gillis and Tom Woodruff Jr. of Amalgamated Dynamics for Alien 5 while it was in development.
The new Alien 5 Xenomorph mimicked that of H.R. Giger's original beast from the 1979 classic, but with added arms, much like that of James Cameron's Alien Queen. Check it out: