This chapter explores key developments in contemporary Catholic theology across various branches, focusing on their movement toward God within a convergent vision of ultimate reality. Recent Christian theologians increasingly emphasize unity over fragmentation when approaching eschatological questions. The chapter begins by addressing the impact of historical-critical New Testament exegesis, which has helped recast the concept of the eschaton in terms of relationality, participation, and universal fulfillment. Rather than offering a static definition, the chapter presents ‘eschatological unity’ as a ‘field of attraction’—a dynamic horizon drawing together diverse theological themes. It surveys significant contributions from recent scholarship in biblical exegesis, systematic theology, Christology, anthropology, and Trinitarian theology, demonstrating how these disciplines are converging on the idea of God’s ultimate aim: the gathering of all creation into divine communion. Themes such as participation, cosmic transformation, and relational ontology support a broader, more inclusive eschatological vision. By reframing traditional debates—especially the tension between individual and collective destinies—this chapter shows how Catholic eschatology increasingly points toward a communal and reconciliatory fulfillment in God. This evolving theological vision offers a promising framework for deeper intra-Christian reflection and for interfaith engagement, particularly with Muslims. Eschatological unity emerges not only as an eschatological goal but also as a theological method. It guides theological reflection toward a dynamic, inclusive, and hopeful vision of humanity’s end in God. By highlighting how Catholic theology itself is rethinking its eschatological outlook, the chapter sets the stage for the following one, which delves into some themes in Shī‘ī eschatology.