I have seen one of these ships in highsec. It was a Trig Medium, appearing heavily damaged, holding a stationary position 90km from the DED Assembly Plant in the Yulai system. There were no obvious weapons mounted that I could tell. However, the most interesting thing was the pilot. At first I thought it was another player by the name of Oveg Drust, he even showed in Local chat namelist. I looked into his history, and the character was created in 1994, even though EVE didn’t come out until 2003. It also showed that this character belonged to DED (2012-present), and before that he was part of Mordu’s Legion (2007-2012), the Caldari Navy (1996-2007), and State War Academy (1994-1996). This character, even though he shows up in Local, is most definitely an NPC.
I conducted a further test by locking on to the ship. At the time, I was flying in an Ibis corvette. He made no attempt to respond in any way; no moving, no locking on, nothing. Curiously, the icon seemed to suggest there are no shields at all on the ship, as far as an observer like myself can see. Armour was fully depleted, and hull was impossibly low (It could have been as low as 1hp left). I considered firing on the ship, but decided against it.
I attempted to contact the pilot on a private channel. As I expected, there was no response, further suggesting he is an NPC.
Next I attempted to ‘nudge’ the cruiser using my corvette, however I passed right through. In my opinion, this information is irrelevant for now.
This would suggest that the Triglavian Collective has strong links to the Empires, given that I saw this ship piloted by someone from DED. It’s also worth noting that they seem quite ‘balanced’ in my opinion, in terms of the relation the ships have to each race. Their mastery is geared towards energy weapons, that and the image background suggests Amarr. The mastery for tackling is a very Gallente thing though, and on top of that, the NPC I saw had strong links to the Caldari. Certainly a mystery indeed.
Lore-wise, it may be that this pilot has been in combat (with the Drifters? Someone else? Who knows) and has returned to a DED base for repair and resupply. As far as stories go, this would make sense. However, the teasers suggest that CONCORD are unaware of these mystery ships, so it does not necessarily add up.
Oveg Drust - insert this name into the EVE notepad for more info
Trig Medium - insert this name into the EVE notepad for more info
My own observations
As of the time of this writing (~1400 EVE time), Oveg Drust is still present at Yulai X - DED Assembly Plant, if you want to see one of these ships in space.