I guess that the teaser really showed the events of the mindflayer interrogation. I still wonder how they got the plans for the nautiloids, they had lost the capability to build them a long time ago. I am pretty sure these things need a lot of time to grow, so the alliance between mindflayers and absolute must have been in place for a long time.
Well, some of the illithid colonies still had nautiloids. Of course, such colonies are extremely rare and incredibly old, but still. Nautiloids were often used for escape or the last line of defense, while illithids obeying the Absolute use them to kidnap people. It seems to me that the presence of nautiloids speaks first of all about the return of the illithids and the beginning of active aggressive actions. One of the forum topics raised the idea of the influence of the Far Realm and the intervention of the Arcane (mercanes), but it seems to me that it is too early to judge this.
