Asserting further confidence that its Time Warner merger will get the green light, AT&T is preparing to fund the $85 billion price tag by filing for a potential US IPO of a minority stake in DirecTV Latin America – a precursor to heavier divestitures perhaps. Reducing its presence in the region opens opportunities for existing incumbents like America Movil, as well as possibilities for the newly formed Liberty Latin America business to recover recent TV losses. AT&T’s assets in Latin America and the Caribbean are valued at over $10 billion and DirecTV has around 13.6 million subscribers across its footprint in eleven countries, through holding company Vrio. AT&T estimates up to $100 million will come its way from the IPO,…