Two days later he was reassigned by the Colorado Avalanche to a two-year deal (expiring after the 2012–13 season) with the newcomers Växjö Lakers Hockey of the Swedish top-tier league Elitserien (SEL).

[11][12] Upon completion of the 2012–13 season, his second with the Lakers and producing 17 points in 55 games, Holøs left as a free agent to sign a contract with Lokomotiv Yaroslavl of the Russian KHL on March 14, 2013.

[14] At the completion of his contract with Färjestads, Holøs was not extended by the club and as a free agent, he opted to move to Switzerland in agreeing to a two-year deal with HC Fribourg-Gottéron of the NLA on May 29, 2017.

[16] After completion of his two-year stint with Linköping HC, Holøs moved to Germany, in signing a one-year deal with Kölner Haie of the Deutsche Eishockey Liga (DEL) on 14 June 2021.

[18] Limited to just one playoff game in his first season of his return to Sparta, Holøs opted to conclude his 19 year professional career due to injury on 4 August 2023.

Developing as an allround defenceman Jonas became a fixture on the Norwegian defense, making his full men's international debut at the 2006 World Championships in Latvia, playing in all 6 games.