I don't think it'll be soon, but I do expect them to eventually release some Alien hive diorama pieces that can connect together.
I'd also some Derelict interior pieces in the same style.
And Sulaco, and LV-426, and the Narcissus, and and and and...
Able to connect then together to make longer corridors and 2 sides to make a hallway sounds so cool, they've never teased anything like this, but this would be my wish! Even if it had to be foam.