Yagrum Bagarn, the only (known!!) living Dwemer still on Nirn. He survived the Dwemer rapture because he was currently on holiday in another plain of existence. As you do. There's nothing to say there aren't other Dwemer still around, or other dwemer who dodged the rapture, but it is highly unlikely as Bagarn only lived for so long because he is immortal (thanks to having Corpus disease), not too likely any other dwemer around in his position.
But I wouldn't be at all surprised to see them make some sort of return, this is the second in 3 games where they've played a major role after all, and noone really knows where they went, so there is no reason why they can't return again at some point.
Interesting side note about the Dwemer, for those of you unaware of the history, they're the Elder Scrolls version of High Fantasy Dwarves, however they technically weren't Dwarves, they were just another race of elves who were just as tall as the others, they were first called dwarves by Giants because, lets face it, to a giant, they ARE dwarves. But here's an interesting idea, in real life, it's generally accepted that people are taller today than they were 2000 years ago. Using that logic, its been over 2000 years since the Dwemer were raptured, if they came back today, it is distinctly possible they WOULD be Dwarves by comparison. They'd be the same height as they were when they left, but everyone else is much taller.
The horse combat, I'd love to see, but I doubt it will happen as it would require a complete rework of the whole game engine to fit it in, it would be a LOT of work. Same goes for my desire to see more comprehensive combat with blocking and countering etc, it would work, and work well, just like Horse combat would, but it would require a lot of changes to the engine.
Again, in a similar vein we have new weapon types, Spears, Crossbows and throwing weapons. A friend raised a very good point the other day, Spears are one of the very first types of weapon, a long pointed stick, around long before swords and axes, why leave them out? Put them in now, they need to be there. Crossbows I want because I like to differentiate between them and bows. I always feel like bows are for professional skilled archers who use bows as their primary primary where as a crossbow is for someone who wants to add some powerful ranged attacks to his arsenal, but is not his primary source. Granted, that's only a roleplaying thing for me, but even so, the option would be very welcome. Similarly for throwing weapons. They don't need to be a primary weapon needing carfeul aim etc. Just let us carry 3 or 4 of them at a time, and make them retrievable at all times, then when we use them, just give them a quickfire button. It would feel so much better playing as a barbarian if I can launch a small dagger at an enemy charging towards me, or indeed launch one at an enemy I am charging at to give me bit of an advantage. It would really change much but it would add a certain depth to the experience.
Smithing is one they can fix though. As much as I love the smithing, it hasn't changed anything, all you do is improve weapons instead of repair them. I was hoping that taking up smithing would allow me a chance to really pick and choose my own equipment, work my own styles of armour and weapons, and most importantly, choose one or two particular types to specialize in. When you get to 100% in smithing you can upgrade everything really high and make everything on offer. Great, but at the end, your best armour is still Daedric and Glass on either side (well Dragon for light armour, but I'm discounting that for now), no difference to how it has been previously. Why can't I take it one step further and choose one particular material of armour and weaponry to specialize in? Break it down further and make it so you, as a master smith, can choose 1 material for weapons and 1 material for armour to specialize in, meaning you can improve them to levels even better than the best daedric or glass available. Yes Daedric armour is cool, but what if you really prefer good old Steel plate? You should be able to become a master with it. Also, what if you're using light armour and take up smithing to improve those armours? Your best weapons are still DAedric, so if you want the best weapons you need to plow points into smithing on the heavy side just so you can make the best Daedric dagger possible. It would be infinitely better if you could just pick elven weapons and improve them to levels better than the best Daedric dagger.
What I want to see mostly is Bethesda do more than just 3 or 4 bigger DLC packs. Yes for new story content, its great, but I'd like to see some more little additions like new creatures. An average of 35-40 varieties in the last 2 ES games, and approx 25 varieties this time around. Definitely need some more. Perhaps give us the ability to pick a plot of land to build our own home on like we had in Morrowind. I'd love to have a house in Riverwood because it's one of my favourite places. What about horses, they just stand around not doing anything, why not give them some armour or something, make them look like warhorses instead?
Also, for the love of god, PLEASE give me permanent enchantments, make them expensive and rare and difficult to acquire. It would give me something to use all my gold on and would be much better to have than poxy charges that I have to top up all the time.
How about letting us rebuild Helgen? Everyone wanted to rebuild Kvatch, and they never let us, so why not let us rebuild Helgen now. Make a little sub game out of it where we can choose what to place and where like a mini city builder. Make it so we can only access it after completing the civil war quest line so then we can design it to suit whichever side we chose.
Also, the Thalmor, we NEED some DLC exploring that side of things. the civil war only deals with the civil war, the Thalmor, despite being a huge part of the history and current political struggles of Tamriel, play a very small part during Skyrim. Lets explore it further.
“It's a movie. If you are going to believe and be affected by an action film, you shouldn't go to see Pocahontas because you are going to think you are a Disney princess” Chloe Grace Moretz, what a legend.