No, unfortunaley.
Initial the 767 release will be P3D4 only. Anyone can drag-n-drop it to P3D5 but official release for P3D5 is on hold until we fix all compatibility issues.

For now at least the following P3D4 features are not compatible with P3D5, so they will require extra work=time:
- 3D lighting fx.
- Bare metal and glass PBR.

But we'll announce the P3D5 upgrade procedure before the 767 P3D4 release.