Nicolas Schindelholz was a married man with four children. The name of his wife is still unknown as he loved to keep his relationship and marriage life away from the media.
In 2017, he left FC Thun and signed for FC Luzern. Injuries led him to not make his debut with the club for 10 months. In 2018, he was signed to FX Aarau by former Basel youth team coach, Patrick Framework.
In the summer of 2020, Nicolas was suspected to be suffering from pneumonia, however, it was ultimately diagnosed as cancer. He did not play for FC Aarau beyond 2021.
Nicolas died from lung cancer on September 18, 2022, at the age of 34. Tributes were paid from around the football community, including by former clubs FC Aarau and FC Thun.