All of the above except Ayleid and Daedric ruins. They belong in Cyrodiil and Morrowind, not Skyrim.
Agreed, though I'd like it if the imperial forts were toned down. It would make sense that a bunch would be abandoned and wrecked, due to the loss of imperial presence after its fall.
Alyeid ruins do not fit, BECAUSE THERE WERE NO ALYEIDS IN SKYRIM, PEOPLE! As for daedric dungeons, THIS ISN'T MORROWIND! Morrowind had them, because they worshiped the daedra. Everywhere else, you'd be more likely burned at the steak, disemboweled and fed your own intestines. Plus, the nords are hugely gun ho about their pantheon, especially Shor. Hell, they waged genocidal wars against the mer because the mer believe in the opposite of their favorite god and fought them since the beginning of the kalpa.
While I voted for Falmer ruins I only want to see one or two ruins for them, I want them to remain very mysterious.
And to further add, they're out of the way in the coldest, most snow covered areas of Skyrim. Why? Because no one else has seen any real civilization or much indication that there were Falmer, save for Nord boogieman stories and wild theories they may have become the Rheiklings.
Keep some continuity, people. The lands of Tamriel are different from each other. Lets stop suggesting to add stuff for the kicks and giggles when it makes no sense in lore or anything.