Kwenn Station was the starting spot of one of the adventures in No Disintegrations as well as Tatooine Manhunt, but the planet itself was not mentioned iirc...

Yes, I have Tatooine manhunt. I know it might never even come up, but I was thinking it would suck if I told my players one thing and a book or product came out where they said something else, so I wanted to at least check

if there was any mention of it at least...

Oh well, not a big deal really. I`ll just tell them it`s a gass giant or something and put it to rest. From a few pictures I`ve seen, the planet looks pale and grey... And wookiepedia says this guy is from there.

I couldn't find info on the planet either.

I'm about to start an EotE version of Tatooine Manhunt . Luckily the players have no time to go down to Kwenn so I don't need to do too much prep for that.

The pictures of Kwenn I've seen makes me think of Hoth , so if my players ask I'll tell them it's a frozen wasteland of a planet with a handful of underground and domed settlements.

Generally speaking, if you can't find information on Wookiepedia then it probably doesn't exist and you need to make it up as you go.

Hmm well since that Wookieepedia entry seems to list Kwenn as the homeworld of a character then I would say make it habitable but uninteresting. I'd go for a Tundra Planet, not as extreme as an ice planet like Hoth, still habitable, but if you could live elsewhere where there would be more food you would, and why most people don't really bother to go down there. If FFG then release something to say otherwise, you could then maybe get away with "They terraformed it into something more livable".