We have at least another three Boeing 737-300 aircraft on order, so I cannot image that we are planning a major shift in aircraft type in the close future. Whilst a more efficient type will have to be sourced in in a few years to take over the 737s to better compete with easy's new 319s & Ryanair's new 737-800s, in the meantime I think the -300s are doing a pretty good job.