
Since the source who sent me the information of the Sony a1 camera last year was correct (the Sony a1 was announced today), I think it is safe to assume that the Sony a7 IV information provided by the same source will be correct as well:
Sony a7 IV possible specifications:
Two new Sony digital cameras (1VY002 and 1VY003) have passed FCC certification. Both are equipped with Wi-Fi (802.11a/b/g/n/ac) and Bluetooth 5. The two cameras could be the previously reported IWW186333 and WW728473 and one of them is most likely the rumored Sony high-end camera:
The previously registered Sony WW119533 camera is now listed under a new, previously non-existent category called “DC” (digital camera?). Previous listings were under the “DSC” category (digital still camera). The model will have Wi-Fi (11b/g/n) and Bluetooth installed: The other upcoming Sony WW271448 camera will come with Wi-Fi (11a/b/g/n/ac) and Bluetooth.