Sunset Magazine's May 2015 issue has a short article on new hops being used by brewers. (Strangely, I cannot find an on-line link to the article, either directly from Sunset's website or the article's author Nino Padova's twitter feed.) The five mini-profiled hop varieties are Azacca, Calypso, Galaxy, Jarrylo and Montueka.
I know it's annoying to reference an article and not include a link, but the reason I even mentioning the article is because the Azacca hop is being used by Stone Brewing in its new Ruination 2.0, a beer I have not yet tried. The article describes Azacca as "intense citrus and pineapple flavors make this hop from Washington's Yakima Valley a new favorite with West Coast brewers."
Stone's description of Ruination 2.0 lists Azacca as one of multiple hops, and it will share flavor with Centennial, Magnum, Citra, and Simcoe. I am expecting a big citrus profile when I finally drink Ruination 2.0.