User blog comment:Zaarqawi/Why players from YGGDRASIL have been transported to the New World at various periods of time./@comment-27008999-20151110194334

First thought: Maybe players were sent every 2 years. And they magically disappeared, with no necessarily explanation, because it had nothing to do with the main plot (like SAO or Log Horizon)

Second thought: All players were scattered across NW at the same time in different centuries, Because people never went missing in DMMO-RPGs (strong laws about that in the real world).

Third Thought: Their egos and personalites stayed within their characters, while their true selves went on with their lives, so they never went missing in the first place.

I also think player egos were sent every 2 years, UNLESS Ainz didn't enter YGGDRASIL until after 8GKs (eight greed kings) went to NW. Ainz knew about the eight greed kings and their floating castle, so he must have played the game before they disappeared. If Ainz hadn't played YGGDRASIL before 8GKs disappeared means that they were all transported at the same time (speculations upon speculations).

the 8GKs weren't the only guild members of their guild probably, since they were a famous guild (since Ainz knew about them), so they were the members to be online in their guild at the time and the rest of the guild outside, but why send only 8? Maybe they were the last of them. So maybe everyone were sent at the same time?

SGG didn't seem to bring their guild so MY conclusion (not fact) is that soem/most players sent at the same time with their egos and characters while their ture bodies continued as usual in the real world. I got convinced by someone else about this (about egos and stuff).