In the broken Great Violent Wildlands, Davis remained here as he sat on a new chair and had his legs on a new table since the old ones were destroyed from the battle with the Venerable Knights. He pretty much closed his eyes and chilled for the time being, waiting for new threats to appear.
For one, he needed to keep the eyes of the world on him so that Lereza's group and the other's group could be successful in their respective endeavors. The second reason was that he could still accept challenges from Heaven's Warriors who were still unconvinced or retarded and put them in their place which was the coffin.
The third reason was that he left a mess here. Calamities were bound to appear in the form of spacequakes or other natural disasters. Even a portal to the Primeval Universe Ruins that unleashes Vacuous Beasts was highly possible.