How about SQ and Air New Zealand?
Errr....they're already there Kaptin!
I guess you must be referring to SQ/ANZ operating domestically in OZ. Sounds plausible to me, but would Joe Q fork out the hard earned to fly with them? Both are carrying a potential "legacy" over the AN demise & I'm sure QF & DJ wouldn't let the punters forget. Probably cheaper to set up too!
And, before you ask, no, I wouldn't apply!