Guys, she has plenty of time to record the DVD yet... There's still the oceania leg to go. Plus, it makes sense that she wants it to be recorded there, as she hasn't been there in decades. I don't think she's willing to take the risk of only recording one night for the DVD either... She'll probably end up using footage from other shows, if they look better.
Although we don't know what crosses her mind, I don't see why she wouldn't want a DVD this time. She might even be doing another leg during 2016, like she did in S&S... We don't know her plans, but I firmly believe the DVD will be recorded somewhere in Oceania.