Honestly think about it.
Skyrim in a 1000 years, you fantasy dwellers really think Tamriel won't evolve?
Skyrim takes place in 4E200.
Earliest recorded date is ME2500. We don't know how long the Merethic Era lasted after that, so I'm starting at 1E0.
Between 1E0 and 4E200, 4450 years have passed.
The most advanced thing outside of the Dwemer to have come from that is... a few spells, artifacts, and some armorsmithing techniques. We are actually sent back in time at one point (or at least view the past,) and meet past heroes, and they're not armed with anything too different than what you currently can get. Certainly, most if not all of their weapons and armor isn't obsolete. And some of those guys date from the Merethic Era! 4E1200 isn't going to see Elfpunk, and it's certainly not going to be too different from what we've seen in TES beforehand.
Compare with the real world- in recorded history (approxametly the same time as recorded history of Tamriel) we went from city-states using plows and manpower, barely creating weapons and armor out of anything more advanced than Bronze to guns, airplanes, computers, etc. If Tamriel hasn't changed that much in that timeframe, it's not going to suddenly experience a technological revolution anytime soon.