Tsk tsk, Finky. You know Duncan has to pot on the tomato plants at this time of year.
Seriously, the "or so" uncertainty just adds more quasi-pressure on BA to come begging to their Union Masters to achieve a settlement. Whether there is actually any substantial effect of forward bookings will be an on-going mystery ... there are far too many other factors in play that have nothing to do with BASSA/Unite.
But my shiny sixpence is being laid on people basically getting on with their lives, and jobs, and booking with BA.