Originally Posted by MichielR

On the likelihood of a change: it is always possible but the seatmaps shown in your booking are likely to be accurate. A plane swap would also mean that a few passengers would have to be reseated or rebooked so is something that Lufty will try to avoid.

Haven't flown the no-F A333 yet but generally the foot space (in 3D/G on the variant with F for example) is wider but lower due to the bulkhead above.