Kevin Brooks wrote:
Could have swore I saw something just a few days back indicating they are
actually now looking at bringing forward the new program a few years in
hopes of shortening the B-52's currently programmed lifespan.

There are some hints out there.

http://www.house.gov/hasc/openingsta...-03bolkcom.pdf
What characteristics should a next-generation bomber have?
Among the factors to be considered are range, payload, speed, unit
cost, stealth, and whether the aircraft will be manned or unmanned.
Reportedly, Air Combat Command (ACC) is examining four options:
• The B-3: an upgraded version of the B-2 that has greater payload and
range along with better stealth and communications.
• Hypersonic Cruise Vehicle (HCV): An aircraft that would operate in
the upper atmosphere at “hypersonic” speeds (Mach 12). It would be
virtually invulnerable to enemy defenses because of its speed and
altitude and could reach east Asia from the continental United States
in less than two hours.
• A high-altitude, low-cost unmanned combat aerial vehicle (UCAV) with
a range of 17,000 nautical miles and a payload of 4,000 lbs.
• A lower-flying, stealthy UCAV.

-HJC