Let's not get carried away. Analyzing the job postings shown here, they are more consistent with a company such as Despegar.com or similar. Notice they do not list English language as a requirement and also remember Sabre published all of its postings in MVD in English, and it never mentioned the need for Sabre/Amadeus background. Also, commission on sales does not sound like Sabre.
I am not saying it won't happen... I just recommend we take this rumors with a grain of salt. Also, if it were true, and Sabre was indeed hiring 20 people to start a call center there, then we will have plenty of time between them being hired and the ceasing of operations in MVD.