Slightly wider grip, leave a beveled area to get to the mag release, and more aggressive stippling especially front and back straps.
Steel decocker and make it flatter with proper checkering - maybe like the 75 Omega convertible. Just get the decoker OUT of the way of the slide release.
Sights - Offer PLAIN rear with a ledge on the front of the rear sight and front night sight ala SIG XRay, or similar.
Offer a mid size version. 17 round (like a Phantom), and 3.8 inch barrel. Make bases for the 17s to fit the P07. This would be aimed at LE - like the G45. Also sell adapters for the P09 19 round mag. as desired.
Offer black, ODG, FDE, UG frame colors in both SR and standard versions.
Offer an RDS version with cover.
Slightly wider trigger.
Then contract CGW for the internal parts. Open a plant here and make USA a manufacturer.