the long rod should act as a scout so add extra engines and stealth capabilities while his more heavier brother, the Kirov heavy destroyer, should emphasize more on power and armor but must NOT sacrifice the speed and maneuverability though cost would obviously skyrocket as well as the overall production.
Ships of this class nowadays don't have much threat, though it should be well protected from enormous air raids and other ships of its class. I guess putting 6x 40mm gatling guns'd be good against missiles. Adding anti-sub weapons is not a bad option too. Deflectors can make it even more difficult to sink a ship. Then again, why not make this ship submerge-able so it can get out of trouble when it needs to.
Just suggesting though. Anyways, great work on the ship. Hope it sees action soon.