This wouldn’t be for a single customer. It’s 50 gig PON, which would serve 32-64 different customers. I’m not an engineer, but I’m assuming it will pave the way for 2.5-5 Gbps services.

Most companies are currently switching from GPON (2.5 gig shared 32 ways), to XGSPON (10 Gbps split between 32-64 customers).

The company I work for has been deploying XGSPON on Nokia transport for a few years now. It’s very nice.