With more people in the game, finding un-sprung traps in the ancestral lands will be harder than it already is. I hope the down-time on the traps will decrease to balance for increased use of the zone in general.
Finding unsprung traps in already difficult, but that is not really the reason people go up there. I go to collect tasty tasty coins. The traps are a nice bonus.
That being said, it would be more fun to have the traps reset more often and perhaps give less valuable items.
I suggest making the traps randomized. Every area I've been in (admittedly not many so far) has picked-over traps, which makes it a lot less fun. Folks have memorised where the good stuff is.