Telecom operators will play essential roles in the coming years and decades. At the same time, new satellite mobile operators will be competitors and partners of existing terrestrial telecom operators. Modern terrestrial telecom operators must adapt to new market conditions for the partnership to prevail. In principle, Telecom operators are becoming Telecom 4.0 service providers, and many business segments are changing significantly. Telecom 4.0 service providers will have to change their approach to product and service development (a complete reorganization of the approach will be required), a new approach to advertising, sales, and customer care, and will have to provide a very high-quality connection with users. All of this will be of key importance for every telecom business. This article will analyze the main characteristics of fiber-optic access networks to end users and the forecast of this type of network in the coming decades based on the CTE (Comprehensive Techno-Economic) model. The CTE model is a new original concept that quickly and qualitatively assesses the quality, advantages, and disadvantages of a telecom operator and indicates what needs to be changed and improved to improve the business of that telecom operator.