I think that\'s is a very limited view Thenior.
In this cave/stalactite, which is most likely going to be massive, the devs might place a boulder somewhere, and if there wasn\'t enough space then they could slowly erode this bould until a new section of cave was revealed, hence opening up new area for building, and quests etc.
Also someone has probably said this already and I will probably get told to look through the newbie forums before saying something like this,
Mining.
Not to get ore/gold/iron etc., but to carve away sections of rock simply to make more space. If the devs decided they could send out npcs to start mining and have new sections in no time at all.