Director of Technology Sea Urchin has clarified NS' plans for the Quasar 015A bomber. It has been suggested they could be withdrawn early and replaced by an evolved Warrior 016A. Sea Urchin said this was on the cards though the Quasar would remain in service well into the 2120s even if so.
The Quasar is due to be withdrawn after 30 years service in the 2130s but will require a final major overhaul in the early 20s in order to achieve that. The Quasar Multi-Update Life Extension (MULE) would be a costly programme costing a couple of billion zarks. It may be NS will instead build new bombers instead of the Quasar MULE and withdraw them from 2123-25.
However the Evolved Warrior (as the programme is currently called) is still in the early stages so no firm plans either way exist yet.