Upgrade, including APS , is possible, however, you don’t call a upgraded 99A as 99B, it’s not how it works, the real 99B ,however, is 100% for sure , canceled, and again 100% for sure, there won’t be any new MBT before 4gen kicks in99B won't be a new tank. So you discount the possibility of incremental armor upgrade packages and even APS? HJ 73 variants still has role to play. They are dirt cheap and can be deployed against soft target and hardened structures.