Report on YSSY that VH-VYK which has been under maintenance in BNE for 3 months will shortly return with a new pride livery (similar to VH-EBL) but also the new Y+ 12J/ 156Y config.
Not clear if this will just be reconfiguration of existing seats, or the first of the fully refurbed 737. VYK is 31st oldest 737 of 75 (+4 with ex-SQ), so arguably just outside the 42 that Qantas said would be refurbed, but possibly ownership considerations may have jumped it into the list.
And more posts that VYH was the first on 5-Dec with changes taking under 24hrs, presumably just removing a row of seats then shifting a few others around.
From a quick look at FlightAware VYA, VYB and VXO have also had a small BNE break.