LUX is over, but continues at the same time, under the form of the LZ project. Xenon has still a lot to teach us on dark matter :)

Concerning the mirror Standard Model, I am quite skeptical as well. Whilst I am entirely fine with hidden sectors, I do not see why the interactions and the particle content should be copies of the visible ones. However, we do not know and it is important to be pragmatic and test all options.