Tekko added dressing rooms for cosplayers, non photo cosplay locations, Japanese cultural/educational programming (Tekko Gakkou), and expanded the game room by 50 percent in 2015. Pittsburgh declared it to be Tekko Week during the convention in 2016. Two attendees got married during the cosplay masquerade and portions of the convention were streamed live (TeamTekkoTV). In 2017, Tekko expanded its 18+ programming. The convention in 2019 featured a wrestling show by Big Time Wrestling. Tekko 2020 was moved from April to June due to the COVID-19 pandemic, but was later cancelled. Tekko 2021 was moved from July to December due to the COVID-19 pandemic.