Based on the values and themes present in Greek literature, particularly in "The Odyssey," the prediction that can best be made about Antinous’s future is:
Antinous’s friends will turn on him, and he will suffer for his actions.
In Greek culture, hubris (excessive pride) and mistreatment of others, especially those who are vulnerable or in need, often lead to dire consequences. Antinous's cruelty toward the beggar, who represents Odysseus in disguise, indicates a lack of respect for the values of hospitality and compassion. This behavior is likely to result in retribution from the gods or others in the story, aligning with the typical narrative outcomes concerning characters who exhibit such negative traits.