Board Thread:Questions and Answers/@comment-27811766-20160216202329/@comment-61022-20160222175838

Generally speaking, yes. If you check out any Thor one-shot that was published in the late 2000s that take place in a previous Ragnarok cycle, you'll note that everyone acts like it's the first time they've interacted, whereas the more contemporary version of Asgard they also act like they're meeting for the first time. With the obvious exception being Midgard, Earth's history keep on going even when Asgard reboots itself. Example, the Ragnarok cycle that brought about the version of Asgard that is commonly known in the Marvel Universe began on the day Jesus Christ was born, as stated in.

The only other exception you could possibly make (although there is lack of evidence) is the 10th Realm of Heaven and the Angels that live there. Clearly it existed after the last known full on Ragnarok circa Thor #293, but there is no evidence that it existed prior to that as yet. That's not to say that it didn't, there just hasn't been any evidence to say one way or the other and that can be chalked up to the fact that plot element had only been recently revealed.

If you want to get a better idea of what happened in various Ragnarok cycles check out the Thor Expanded History page I started working on, it covers the pre-history of Thor in all stories published up til around mid 2014 or so.