I have read rumours that BA will be forming a partnership with CX on the kangaroo route, to replace the one QF ditched. So maybe this is the rationale behind BA’s decision to drop the code-share, they have a plan B?

For once the rumors were correct, hehe
http://www.heraldsun.com.au/travel/news/british-airways-joins-forces-with-cathay-pacific/story-fn32891l-1226586198548