[2][3][4] He was inducted, alongside former Iloilo City Mayor Jed Patrick E. Mabilog, as an honorary alumnus of Central Philippine University.

[6] In October 2024, Treñas announced that he would not run for reelection as mayor in the 2025 Philippine general election, citing health reasons,[7] and instead endorsed his daughter, Raisa Treñas-Chu, to the position.

[8] In May 2024, Treñas apologised after he threatened to sue journalists covering the demolition of an art deco façade at the Iloilo City Public Market dating from 1938 which sparked protests from heritage conservationists during a press conference,[9] during which he publicly went into an outburst, with Daily Guardian (Iloilo) journalist Joey Marzan expressing belief that he was Treñas' target.

[11] Treñas subsequently filed a cyber-libel complaint against Nereo Lujan, a historian and information officer of the Iloilo provincial government for suggesting that the demolition was done despite a lack of permits.

[12] In July 2024, Lujan filed with the Ombudsman a complaint against Treñas for unlawful destruction of the Public Market's façade without the required clearance from the National Historical Commission of the Philippines.

[13] Treñas married to Rosalie Sarabia, in 1984, who is actively involved in numerous public service projects in Iloilo City.