Once that project is completed, Revelation 21 & 22 record his further beginning creative efforts, an "eighth day" or second week of creating, perhaps among many. Note that the new heaven and earth have different laws of physics. For example:
* no gravity: the New Jerusalem is a 1,500-mile cube, but in gravity those corners would collapse and it would become spherical, as with every large body we see in this universe.
* no electromagnetism: no illumination from light sources; instead, God illumines everything personally.
There goes my career as an engineer.
You want fries with that?
I go to prepare a place for you.