nutshell - been in Europe 10 yrs because of his work (this country 7 yrs) and work has come to an end. He cannot find work at the right level as he does not speak the language, I have also been unable to find work even though I speak the language fairly well ( there is a pretty rigid job market here).
I entirely accept we cannot stay here and even though I and the children have learned the language (9 and 8 and fluent, which they will probably lose) I cannot call it home even though I do love the quality of life here.
We have been spoilt, nice house (rented), good school, good weather, woods on our doorstep, easy commute to work......and then I think of those things in the UK and I shudder......
Yes there will be positives to going back - for the two of us (I have real doubts that the children will gain very much at all as we already see a lot of the family we have (all on my husband's side). We will be more sociable, I can find work, join the national trust and given my name, enjoy my favourite food 
.
BUT - the schools, housing, weather, outdoors, commute to work...
.
at the moment we have no idea where it will be as there is no job but MIL (widowed) would like (as she has made clear) us to live as close as possible to her .
come to think of it, no wonder I feel so bloody depressed.........