Gomer - Refer to Note 5 of the TC Datasheet, the only additional requirements for the Max weight to 7,500 is addition of : RadAlt, HTAWS, CVR/FDR & Pulse Lightst.
As stated by Helihub, it comes down to FAR27 / 29 acceptance.
If FAA/EASA accept the aircraft at this weight under FAR27, all Hell will break out by other Manufacturers who stuck with the requirements of FAR27.