I was just checking Diamond Films (Brazil) website and noticed that they posted back in February that they would be releasing Queen of the Desert this year.  Here is what they said on Facebook on 9 February 2015:

 

E vem mais novidade por aí!
Confira os próximos lançamentos para este ano: Queen of the Desert, Knight of Cups e Woman in Gold, ambos ainda sem título em português. 2015 promete ser um ano de grandes sucessos, aguarde!
#ProximosLancamentos #DiamondFilmsBrasil

This means that they should also be releasing the film in Argentina, Mexico, Chile and Peru.  Back in 2013, Variety reported post Berlin:

“Making good on its status as one of the world’s most muscular buyers of the biggest U.S. independent movies out, Buenos Aires-based Sun Distribution Group has closed Latin America on a near roll call of the weightiest titles unveiled last month at the Berlin festival.

Also in Sun’s Berlin cart, said Sun’s Tomas Darcyl: FilmNation’s “The Reluctant Professor,” with Hugh Grant and Marisa Tomei; and “Solace,” with Anthony Hopkins and Colin Farrell; plus Werner Herzog’s “Queen of the Desert,” starring Naomi Watts and Robert Pattinson. [My emphasis]

….

Sun’s clout is no accident. While its Latin American rivals tend to sub-distribute across the region, Sun has established distribution operations in all Latin America’s major territories using Diamond Films, which it launched in 2010.

“We are the only distributor which works all Latin America, all platforms, with a direct distribution presence in 90% of Latin America, operating Diamond Argentina, Diamond Mexico, Diamond Brazil, Diamond Chile and Diamond Peru,” said Ricardo Costianovsky, who partners with Darcyl and Diego Halabi at Sun. [My emphasis]