There are a couple of decent oneworld fares on offer at the moment – London to Panama City:
If you book BA flights both ways you could use your Avios for a discount. Note the MIA-PTY (Panama City) flights are BA codeshares booking in Business Class, but as it’s possible that all AA flights will book in to Business Class by then, this may be no loss. The return flight on Iberia is on their nice 332 aircraft.
Also on offer, is the long running fare from many German airports to Hong Kong, connecting in London to BA flights:
Using 45,500 Avios – you can take off EUR292 and earn back 33,396 by booking this routing as a BA Gold Card holder (100% bonus).
There are a number of dates about for both sets of tickets, so if you need to travel West or East this might be nice way to get there.