Its a neat idea LinZex but it won't ever be made.. its the worst of both worlds
Purely digital lock with a swipe card/RFID/Pin/Chip etc is very simple design ( no mopping parts) but you need to know if it fails secure or safe under power loss....
Conventional lock "analog" system is more complicated with moving parts and not as secure... it doesn't care if theres a power cut either, it will always work....
Mixing and matching in this way adds the complexity of moving parts and the problem of power loss into a single unit... not likely to be made.