There were elves in Kirkwall who were willing to give up their Andrastian faith to convert to the Qun, and risk their lives in an attempt to take over the city to help the Arishok gain power. I can imagine some of them would be willing to overlook the religious differences of the clans and the presence of mages among the Dalish if it meant that they had the opportunity to be free of human rule.
You think there will be two insurrections, one lead by the elves who have lived under human rule for generations in the Dales, and the other by the Dalish who may be in the kingdom due to the Arlathvhen? Are you thinking the elven Inquisitor would be able to support either one? I'm looking for a bit of clarification into what you think what be going on in the Dales.
I am sure there would be some who would, I just don't see it in large numbers.
My supposition is that the CEs in the dales will rebel in ME or DAI one, the idea of the eluvians presents two possible applicaitons. One would be that the tearing of the vale/cataclysmic event at start of DAI is the Dalish making their move-I find this unlikely, but it keeps popping into my head whenever I try to pin down who could actually tear the vale like that, the other is that the Dalish are playing the long game with the Eluvians and don't really care about the dales and so are actually more interested in taking back wherever Arlathan was. I won't deny the concept art of the ruins of Arlathan encouraged this but who knows. I don't know that the dalish part will actually come into play in DAI other then possibly helping them with their eluvian research or something going on at the Arlathyhen.
Its all supposition on my part, I just don't see the CEs and Dalish being a united front. Which is actually a good thing for your point of view. If my idea plays out, you will actually end up with two elven territories/nations the CE Dales and the Dalish Arlathan. If they somehow presented a united front, I worry for the infighting that would result after they achieved independence.
Again, at the moment it is just where the magic balls in my head are settling when I can't sleep at night and I decide to ponder these things. So its largely a logic exercise, but I generally keep coming to the same conclusions so there it is.