I'm agreeing with that guy above me, I'm thinking it's just a dungeon. There was only one white sigil, unlike the two colored sigils used in PvP. Also, you're not really guaranteed to be outnumbered in PvP, and the ships in there were just Marleybone skiffs, and no one would be using their old lvl. 26 ship against a giant lvl. 65 Aquila Galleon.
But, I have seen some hints about Ship PvP before, and that'll probably be part of the update too.
Well, I would think it's a brand-new instance that highly involves ship-to-ship combat, kind of almost like the Scylla battle in Aquila, given that there's a Transportaler portal in the Water Mole village with a Marleybonean soldier standing near it, the clothing's color in that time is green, compared to the others that are mostly blue or red, though, I wouldn't think a new giant Skyway creature or more may be a part of it, I still think it's going to be intense once we go there. Regardless, this new teaser is getting us one more step closer to the Test Realm's reactivation sooner than we think!
Hi I don't think it's pvp either I paused it when it kinda zoomed on the smaller ships and I couldn't see the first part and I could be wrong but it look like it said gaming ship so it might not be ship pvp but you never know