I listened recently to Bethesda's podcast on the production of Oblivion, and one thing they mentioned was struggling to get all the dialogue onto one disk, and they had to cut out, for example, the having an arena in every city idea (I think it was a good one, that many is unnecessary, but still) and that was only 180 lines, so they must have been really tight on space. I was kinda hoping we'd have a LOT more in Skyrim, since it would mean more quest content, and a more real world. On the other hand, I've heard they are making an XBOX disc with an extra gigabyte or so of space (XBOX is the only console where this is really an issue), but I've also heard this may simply be used to waste extra space on privacy protection, which would mean no more space. None of the base game can be installation required since some XBOX's have no hard drives, but I was wondering if maybe they could add some side quests/smaller questlines to an additional installable disc so that the game will run fine without it but you'll get more dialogue and quest content if you can install it. Another issue is that more voice actors will mean more rerecording of basic rumour and conversational dialogue will have to be done.
That was a bit of a rant, but is my concern necessary here?