I really enjoy Skyrim, as I did Oblivion, but one thing I miss in Skyrim is large cities to explore and quest in.

I like a backdrop of many residences and shops, and hidden passages, and sewer access points. And not just the larger city, but also having a lot of NPCs to interact with and make for more realism. Likewise, having the random NPC shootouts in the streets, or other radiant occurrences are really cool.

Don't get me wrong, I like the rural areas in skyrim and the gorgeous panaramic scenes, but I also want some urban areas. Also, if some of these new larger urban areas could look intact and not like a tornado just tore through them, that would be nice as well.

Zero.

It all depends on where the DLC will be based i suppose. I agree with you though I'd love to see some actual cities rather than glorified villages. Seems weird that only 30 or so people actually live in each "city", although i suppose there's hardware issues with consoles to consider.

Theres some chance. They could do a DLC like Mournhold (is that the name?) for Morrowind, but I can't think of any great cities in Tamriel that the DLC could be set in.

not as big as the ones we have now, which aren't that big

I don't know how I'd feel about it. I kinda want expansions to take place somewhere completely different, as my current character is so overpowered that I don't really want to use him for new content. I'd prefer new content to be challenging and such. Experience a new area with a new character.

I think fewer, larger cities are the better way to go though. It's nice to have meaningful, memorable places.