I have done all of the CoP missions and have Dynamis-Xarcabard cleared so those requirements (if they exist) woudn't be a problem.
If clearing Dynamis-Xarc is a requirement, they will be locking out a lot people interested in alternate means for upgrading relics and gaining AFs. I don't think their intention would be to do that.
Not all dynamis shells have the means or numbers to defeat Dynamis Lord (I suppose some will just say {That's too bad}). Secondly, most shells that have beaten him probably have more than 36 people and therefore some would be left out especially if these areas are also on the same timed lockout (ie old dynamis prevents you from doing the new one for 3 days).
Due to these issues, I think the requirements won't be quite that harsh (maybe have to beat up to a certain CoP mission like others mentioned) or involve some new minor quests and I'd assume that they'll be seperate timers.
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