About Zorin OS 16

Hello there. I would like to install Zorin OS on my laptop and I know that a new version has been on the making. Should I install version 15.3 or wait for the new one? Besides, does the ultimate edition cover the Xfce version? Thanks.

This page shows the versions and what uses XFCE.

You could start with some of the free versions and then pay for Ultimate 16 when it comes out. Or support the developers by buying 15 now and buy 16 later, depending on your financial situation.