6
Now I'm wondering... with the Imperium occupied by clearing out Necron encampments and now the presence of the T'au (yet to come: Tyranids, Chaos), it seems increasingly likely that the Jotun will stick around for a while as they're too difficult to dislodge yet not a threat to anyone.
Which brings to mind a question: how do the minor NPRs handle the eventuality of running out of resources? With a normal NPR there is always the possibility of expanding to other systems to fuel the war machines, but a minor NPR lacks that option and so would eventually run out. I know NPR ships are, for uhhh reasons, not limited by a lack of fuel or MSP, but the AI pretends that it is and tries to refuel, resupply, etc. those ships - I imagine that drive could cause some difficulties if the minor race is defending their entry JP after 100 years and the refueling AI starts to override the "defend in place" AI.