(Trailer: http://www.youtube.com/watch?v=TvhQZoyZn1g)
0:27 - The schematics refer to it as a "small house layout". This could either imply that there are many different house designs to start with or that it is just the base of the house and that any addition is made from the drafting table.
0:29 - The carpenter's workbench has a section called "house" so I would guess this is where you create walls and roofs and such things. I'm also guessing that this is where we make furniture if we can do so.
0:30 - A new section of forging will be added where you can craft hinges for the doors, iron fittings (what ever that is), locks and nails. Since we get locks and hinges, I would guess that we get to create the doors and chests ourselves.
0:32 - the design book says "West Wing - Green House". This could imply that there is in fact only one house design after all since it seems like you can't choose where to place your rooms.
0:34 - Again, the book clearly states that the enchanter's tower is in the west wing.
0:39 - The greenhouse before it is filled with plants. Hopefully this means that we can plant any plant we desire in the greenhouse. There is also an interior workbench between the doors.
0:40 - The greenhouse with plants and butterflies.
0:45 - simply an empty cellar
0:46 - The same cellar, now with furniture. "Use the interior workbench to decorate each room with a large variety of craftable objects" Hopefully this means that we can both make our own decorations and that we can decide where to place everything, even manikins and carpets.
0:49 - A collection of all divine shrines, obviously
0:55 - The trophies are the same as the loading screens (but they look awesome so it's good). However, the wolf statue consists of a single wolf while the loading screen consists of two. This means that they have been adapted to fit as trophies, which is nice.
1:00 - The fish hatchery has something called Salmon Roe (this isn't my discovery!), and in the upper left corner it says "give gift". I'm not sure why it says that...
1:07 - We will be able to have both a smelter and a grindstone.
1:08 - Rayya is apparently a Redguard steward, but her dialogue implies that she is a housecarl.
1:10 - Valdimar seems to be a housecarl as well. When you ask him "where can I buy materials like glass or straw?" He can be heard saying something with "Whiterun..." This implies that there will be a new vendor in Whiterun or that one of them will have more to sale. Valdimar is also wearing a new version of the same armor the player has in this trailer, if I'm not mistaking it. (Edit: it seems to be the Horned Scaled Armor, sorry)
1:25 . Judging from the bench, Lucia will be found in Whiterun where she is "begging". Judging from the name, she will be an imperial child, which means that there is indeed children of other races if it is true. However, that doesn't mean that there will be elven children or beast children, but it could.... (Edit: There already were children of different human races already, fail on my part, sorry)
1:31 - you will be able to tell the children to go outside, give them gifts, tell them to do their chores and play games with them.
1:35 - Here we can see a forge in the cellar, so yes, you can have a forge in your house! : D
Discuss!