Oh shit! I never knew there was a troll over there. Darn, that's a bunch of XP I missed. lol
The game is so short I'm actually thinking of another play through with a different faction. I don't think I've ever played joining the sect camp (just old and new). I think the total play time for me this last time was less than 40 hours, maybe 50 tops. It was only a matter of a few days, less than a week. So it feels like a game I can back to anytime.
Gothic 2, especially with NoTR, is quite long if I'm remembering correctly. Not Skyrim/Morrowind long, but more than a week's worth of playing, if I'm remembering correctly. And it's a much larger world than Gothic 1. Or at least, that's what I'm remembering. Seems like it would have to be by default, since it includes the colony and the area outside of it.
EDIT: Just checked, and my last save just before finishing of The Sleeper and ending the game was 38 hours and 24 minutes. And that last part was a matter of minutes, so yeah, it was under 40 total hours to finish.
EDIT2: BTW, wanted to confirm for you your suspicions about In Extremo. I didn't install the In Extremo patch this time, but did remove the "55" in the ini file, and sure enough when I got to Chapter 2 they did in fact show up. I'm guessing here, but most likely the Gog (and Steam) digital versions still don't include it (for licensing issues) but it must be that the system pack, community patch, union, or some other unpaid for mod must have put the files back in there and then you simply had to remove those last two characters from the ini file. I feel almost certain that neither Gog nor Steam (english versions at the very least) include the in extremo files. But it was good, since this time I had In Extremo and regular old scavengers instead of Scavengers of Hau. There was another monster that the In Extremo patch changed, as Orc Dogs became something else and I think there was maybe one more too (blood hunds or something?)