I've got a DXB/SIN flight on EK metal in Y that has been booked using the QF codeshare (QF ticket). I have the EK booking reference and am looking to open a Skywards account and transfer Amex MR into that account to upgrade to J. I can see there is J award availability for the flight I'm on. Is an upgrade actually going to be possible, or am I being a little too optimistic?