Our team is working to set up the test site/sandbox. If the team has extracted the data from your live site before the new items are created, it will not be available on the test site. However, when we switch your live site to PC 2.0, we will take care of this new item as well. 

Meanwhile, if you want to have this on your sandbox/test site, you can add it once we set up the test site in PC 2.0 and handover it to you.