I've got a LHR-CAI hanging around, due to expire in a month or so, and I've never discarded the last sector of an xONEx before, due to various scare stories. Given the recent price changes, using it to start a new ex-ME xONEx doesn't seem that great an idea.
I am considering changing it to a LHR-BAH, and then staying on that a/c all the way back to LHR

Presumably changing the routing would cost me just the re-issue price (e.g. $125 or so), or are the pricing changes likely to catch up with me? Also, the TPs in doing this could be useful.
Any other ideas on what to do with this? I guess this is/will be a common problem