I have posted my opinions on stuff on sub forum already, but figured out I could post some general thoughts here
So first, I'm really surprised by this thread since I figured out you guys wouldn't even think of sequel before you have finished other projects you are planning
Secondly, I'm in the "Prefers sprites to 3d models" camp, but I do consider it acceptable sacrifice in this case since 3d models could allow stuff like juggernaut, scuttler, less humanoid aliens, reaper hives, etc features in the game and adding features to be easier.