There was a rumor about Santiago Arias potentially joining Atlético Nacional for 2026. However, according to journalists Mauricio Agudelo and Pilar Velásquez, Arias is not in the current plans of Atlético Nacional's management, as their priority is to renew Alfredo Morelos. Additionally, the presence of Andrés Román at Nacional further reduces Arias's chances, and if Román leaves, the club has other options in mind. Arias's contract with Bahía ends in December 2025, and his future at Bahía or elsewhere remains uncertain.

Santiago Arias is being considered by Atlético Nacional due to his limited playing time at Bahía in Brazil. The club is looking for a high-profile player to strengthen their squad. Journalist John Eric Gómez reported that Arias is a possibility for Atlético Nacional for the Liga Colombiana II-2025. Arias is open to returning to Colombian football. Currently, Transfermarkt estimates his market value at 2.00 million euros.