"Planning" by Boeing and Airbus for the next generation on narrow-body jets is just that, "planning". The 737 and A320 series are selling like hotcakes. Neither BA or Airbus are anxious to replace their cash cows.
Pressure for replacements will come from the airlines, especially with fuel prices high.
All three engine makers are investing in new, efficient engines. As they say, "there is no such thing as a new plane, only new engines". Pratt's work is especially interesting because P&W is following a path unlike the others with its geared-turbofan technology, already selected for the Mitsubishi regional jet, and possibly the Bonbardier C series.
Thanks, thats what I was referring to. I saw on Fleetbuzz that BA is starting to look more seriously at the replacement and thought perhaps I might of missed something on engine development. So, nothing new at this time. Thanks again.