As regards BA, I, along with a number of others, are hearing the increase in CRA may come sooner rather than later.
The reasons for this are purely financial as far as the BA beancounters are concerned in that any increase in CRA will be accompanied by a 'tweak' in the pension contributions/scheme that will mean the deep dark black hole in NAPS suddenly starts to fill surprisingly quickly.
BA wins in two ways. Beating the 2006 date they can declare themselves a 'forward looking, staff orientated' company whilst behind the scenes the pension coffers will be recuperated.
Overall a slightly better pension for those who sign on the dotted line but certainly not worth 5 years at the current accrual rate.