Thanks for the information christep. I have a date booked at this stage, and will change it if needs be later, but it was really the rerouting if the route is dropped that had me a little worried.

I am crediting the miles for the DONE4 to AA, which will get me EXP, but the SIN-BOM secotr on the Jet Airways cpdeshare with a QF flight number won't get me any miles, causing me to jsut miss the EXP without adding my own tickets somewhere else! If I am able to reroute through BKK or HKG with QF/CX, then this won't be a problem.

I only really though about this, as the QF board had some talk that the new codeshare might see the demise of the QF SYD-BOM flights ( I know- it's onbly talk at this stage, but ...it got me thinking, and made me change the open sector to a confirmed and dated one!)