Not too sure about this one.I can earn AA miles on TN flights but not on the QF codeshares on the same sectors.
That is because AA have their own agreement with TN to earn and burn miles with some of their services (and as part of that agreement, a member of AA will be subject to possibly different earn rates depending on whether they have booked on the AA or TN code). This has nothing to do with
oneworld or associated exceptions.
The specific 'obligation' for
oneworld airlines is that FFP mileage can be earned on
oneworld marketed airlines operated by
oneworld carriers (possibly with minor exceptions). Everything else is ineligible unless covered by an agreement. For example, AA members can only earn miles on QF services operated by JQ only if flown as part of a
oneworld Explorer fare.
There is also the issue of whether, in each constituent FFP, members of a given
oneworld FFP can earn both
redeemable mileage and/or
status / elite qualifying mileage (or whatever the 'currency' is). To give an example outside of QF, with CX Asia Miles you can earn Asia Miles when flying CA, but you will not be able to earn Marco Polo Club tier points.
The same 'obligation' is applied to lounge access. Any other exception (i.e. access with a non-
oneworld marketed ticket or operated by a non-
oneworld carrier) is only by agreement (and there is also a further complicating factor as to
who operates the lounge in question).
As far as the QF/EK agreement goes, with the two flight pairs QF1 / QF2 and QF9 / QF10 being routed through DXB, for other
oneworld elites, as long as they book on QF (or other
oneworld codeshare) marketed tickets flying on these QF operated routes, there is essentially no difference to current....
except for one possible sticking point: lounge access in DXB.
Lounge access in DXB to EK lounges (assuming QF will not open a lounge or have joint ownership of a lounge with EK) might be only by agreement through EK and QF, which means QF elites will have no problem accessing an EK lounge, but other
oneworld elites will not have access. There is a BA Galleries lounge (the DXB Airport site and
oneworld lounge finder both suck, but according to BAEC board on FT, the lounge is located airside Terminal 1 near Gate 120), which
oneworld elites can access if flying on QF1/QF2 or QF9/QF10 whilst in DXB, but since these QF services are most likely to land at Terminal 3, although a transfer is possible, the transit time in DXB (unless one is stopping over in DXB) probably makes the effort of accessing the lounge impractical (even if a T1/T3 transfer can be effected in as little as 10 minutes one-way - I have no idea having not been to DXB - given that the typical layover is about 90 minutes at maximum, accessing the lounge for a mere 10-30 minutes is, IMO, usually not worth it). I'm not sure QF have budgeted this consideration into settling their agreements on lounge access with EK (and the latter and its members will probably not be happy to share the lounges any more with other elites), but that's the only sticking point I can think of, and, although it is a selfish remark, for the majority of members here it will not be an issue (since many here have QF elite status, or no status to access a lounge anyway when they are travelling W or Y).
EDIT: I did some further reading and it appears as if DXB T1 and T3 share a common airside concourse (T1 has low gate numbers; T3 has high gate numbers). This all said, perhaps it is viable for pax on QF services who cannot access the EK lounges can access the BA Galleries lounge, since they can move freely about the concourses that encompass both terminals (QF lands at the high gates in T3; pax can make their way to the low gates at T1 to gate 120 for the BA Galleries lounge). Naturally, one lounge is probably superior to the other, but...... one must also consider that the overall concourse spanning T1 and T3 must be
huge.
Disclaimer: All information above is strictly based on assumptions made by the author within and outside the known scopes of the QF/EK agreement; and also strongly assume that the QF/EK agreement will go ahead