No general term need ever be used. Just put it as fact, e.g:
UK 2009 £5 500yrs Accession Henry VIII - BU*
UK 2009 £5 150yrs Big Ben - Proof only*
UK 2009 £5 Countdown to 2012 (3) Swimming - Circulation*
* Note that at this stage I do not know whether these will all be circulation coins or not, but I am just using them as examples. Proof, BU, Circ, etc. are definatite descriptions and 'only' can be added when necessary.
Where applicable, descriptions like 'Platinum Piedfort Proof' can be used. As I have said before, one has to be very careful about using terms, even 'NCLT', before the plans for the year are disclosed and even after that, no general term is necessary; put full details every time and avoid confusion.
Bill.