And we have some confirmation that Syria has indeed signed contracts for the MiG-31E, and the MiG-29M, whose production was due to start this year (something that left me puzzled as at the time of that announcement it had no contracts). It seems that the MiG-29M deliveries have either begun or will begin soon, as DID says the contract has come into effect.
Syria Buying $1 billion in Russian Weapons
Syria Buying $1 billion in Russian Weapons