Dear United Airline,
the B-52s production ended in the '60s with the delivery of the H model, the only one still in service. The USAF plans to go on using it for a lot of time to come so they planned a series of upgrades and updates to the avionics despite it would need a new powerplant as well. Boeing proposed a reengining with RR RB.211 turbofan but untill now the USAF has declined the offer.
You are famous for posting thousands of posts, sometimes smart, other times childish. Is there maybe a competition to be the greatest poster of the forum and you are the only participant?