Sorry for the rather messy title.
Looks like we are moving abroad again. 3 DCs have always been in UK curriculum schools. The secondary school in our new location does IGCSE exams whereas the current secondary school in the UK does GCSEs. ) Does it seem feasible to move them and then bring them back to do A levels.
DD1 (Year 4 at the moment) would come back to enter Year 8 in the UK so I'm not to worried about her moving around though the Elementary school teaches PYP rather than straight UK curriculum so there is still that to consider. I'm more concerned about the boys as this could be a crucial decision for them.