According to the Mayan Long Count calendar, with each Great Cycle lasting approximately 5,125 years and the last cycle ending in 2012, the next cycle would be completed around the year 5139.
Step-by-step explanation:
The question pertains to when the next cycle of the Mayan Long Count calendar should be completed. To understand this, we should consider that the Mayan calendar consists of several cycles, including the bak'tun, which is equivalent to 144,000 days. The Great Cycle is completed every thirteen bak'tun, roughly every 5,125 years. Given that the last cycle ended in 2012, we can infer that the next cycle would complete in approximately 5,125 years after that date. Therefore, the next cycle should be completed around the year 5139.