I'd like to see A:CM aliens done by Neca as well, and I honestly expect them to, it'll just be a loooong time coming. Nothing soon. Marines are somewhat popular, I'm also starting to make fodder soldiers out of them, so its possible that we may see the main ones from A:CM. But again, I feel that A:CM is the last resort option for them when they're out of ideas.
As far as video games go, they already started with the 2010 predators, so the next newly sculpted video game alien will be from there since Isolation was mostly an accurate retool (still, appreciate the legs and tail), then if Cold Iron's game doesn't come out a lot sooner than we think and unless it's crazy successful, the next one will be something from AVP:Extinction I believe before A:CM.
Who knows, we might even see a Working Joe before A:CM.
On second thought, anything is possible, I would have never thought that A3 would be getting so much love from them. After their decent price-quality ratio, the thing I like most about them is their wide variety of Predators and Aliens.
P. S. Has anyone here mentioned that the Alien series 13, Kenner tribute wave is finally releasing on the 19th of February?