(...)
I'd like to see some fracture among the Dalish , with those who are pro "Dalish" with their current lifestyle and others who really wants to bring back the old ways : a land mostly ruled by mages.
If Dales is anything to go by, I don't think Dalish settling down would actually lead to land ruled by mages. Definitely not any more than they are ruled by mages now. Keepers of Dales were important, but in the priesthood-in-pretty-religious-country way rather than de-facto-rulers kind of way.
And the main problem of Dalish would not be actually hunters becoming less important, but rather the fact that they don't really know sh*t about agriculture
Unless they are joined by "city" elves (I'd say that in reality quite a lot of "city elves" actually live in the country and work as farmhands - we know that some of them do, I frankly believe that it's the majority, only they're not as noticeable as in cities, lumped together in a big Alienage) they will have a very hard time adjusting. And if they ARE joined by city elves, that would breed a whole bunch of different problems for the new elven homeland, starting with "and why the hell should Dalish automatically rule" from City Elves with Dalish (and their moar-elven-teh-thou approach) having a hard time to understand that perhaps they really need to treat city elves more or less equally rather than as children who need to be educated since obviously they have no idea what this whole being elven is all about...
Ok, but now I'm starting to get into problems more relevant to situation of my one character in p&p RPG campaign.
Either way, as for hunters - I don't think their position would be very challenged for two reasons. First - most Dalish are hunters to some extent and in fact its other, rarer skills that are nobilitating... But when we're talking about the elite professional hunters, I bet they're also the best warriors and do most of scouting and fighting for the clan - and when Dalish settle, they're gonna need military and physical prowess of those elite hunters will guarantee them the position of protectors and defenders of the new elven homeland... And such responsibility is exactly where nobility tends to arise from. So, while hunting will likely become less important in time, I wouldn't really worry about the hunters