This is speculation based on the new episodes that aired in Singapore. Spoilers are likely. When Airachnid tries to take over command of the Decepticons, she claims that Megatron has abandoned them and proposes that they leave Earth. After she gains some support from the troops, she immediately gives the order to set a course for Regulon 4. What do you think is at Regulon 4? Could it be a Decepticon colony? Or something else entirely?