Parallel/Alternate universes work a lot like that.
Worst offender? Starting a discussion in a vague way surely isn't such a bad offence, it's a little silly at worst.
Now we arrive at the gratuitous accusations, I didn't expect anything less from you. Did you at least notice that you are at fault of the same mistake if we follow your logic?
But you have to be a magician or something to guess it after watching only the first two episodes.
Do I have to repeat myself until nausea sets in? It's because of Kaworu's phrases, he seemed to talk like he already experienced this story and it's really hard to believe that they just casually inserted in both movies phrases that could be read in this way.
Because they're similar but not identical, E7A0 actually shows a past modified by a dimensional flow from an alternate future, NGE and NME seems to be concurrent. Again, why do you think that Anno and Khara are under any obligation of making our life simple by telling us since the beginning if it's a sequel or not? It's possible that this matter will be left unexplained but still open to debate even after NME will be completed, as some people hypothesised (personally I just hope that it won't happen).