Brownfield node upgrade strategy

An operator is interested in understanding what is the operating cash flow (OCF) opportunity by installing different fiber deep technologies to brownfield MDUs in a market. They have a hypothesis that different fiber deep technologies will have different take rates.

An operator would like to develop a roadmap to reach 10G capacity on their access networks. To make an informed decision he wants to understand the effect of multiple technology paths on total cost, investment profile, technology availability risk and ability to support his product roadmap.

An operator would like to develop a focused short-term greenfield expansion plan with an understanding of short-term and longer-term cost trade-offs. Currently, XGS-PON is more expensive than GPON. Should they initially execute their expansion plan with GPON or XGS-PON?