After selling out both Sydney concerts, the promoters of the shows - Michael Coppel Presents - have announced a change of venue and dates.  The Friday 2 December concert has been cancelled, and the concert on 3 December has been moved to a larger area within Sydney's Centennial Park, which will accomodate more than the original two concerts capacity combined. 

Here is the full announcement:

CHANGE OF VENUE WITHIN CENTENNIAL PARK FOR ONE & ONLY SYDNEY CONCERT Strong ticket demand has created space limitations at the original Centennial Park concert site in Mission Fields.

Accordingly Michael Coppel Presents is relocating Jamiroquai's Sydney show to a larger and better-appointed area within Centennial Park known as THE PARADE GROUNDS.

The Parade Grounds provides better viewing and audio coverage, as well as permitting multiple entry and food and beverage service points.  Most importantly there will be more room to dance, enhancing the concert experience! Due to the relocation of the venue within Centennial Park the show on Friday December 2 would lead to an unavoidable impact on other scheduled park activities and therefore will not take place. All tickets purchased for the Friday December 2 show will now be valid for Saturday December 3, with no need for exchange or refund. A final release of 2,000 extra tickets will be made available as from 9 AM on FRIDAY, November 17 - once sold out there will be no further ticket releases. If ticket holders for the December 2 concert are unable to attend, refunds must be arranged prior to 5 PM on December 1, and will not be considered after this date.

The 2,000 additional tickets for the 3 December concert at the Parade Grounds in Centennial Park are now available from Ticketmaster.com.au.