Forget the weekend freebies - better to wait two days and use the no-fee freebies.  The next lot start on 4th and run to the 7th.

https://sellercentre.ebay.com.au/promo/5802

If you click on it now you'll know whether you're going to get them but nothing will show up in your promo section until they actually start on the 4th, so don't jump the gun and start listing before the 4th.  You can always schedule them to start then if you know it's going to work for you.