Outgoing Thijssen predicts Roar success
Thijssen led the Roar into the 2014-15 finals – albeit via seventh spot – before losing to Adelaide United in the elimination final.
John Aloisi has taken over in Brisbane, with Thijssen farewelling the Roar in a statement on Sunday.
The former Netherlands international is optimistic about the club's future, saying Brisbane are close to being contenders.
"With the good mentality and good quality in the group, I am very optimistic about the future for the Roar if everybody is fit," Thijssen said.
"With the system we play, we can make it difficult for any team we play.
"I wish everyone connected to the club all the best for next season and years beyond that. Goodbye and thank you Brisbane Roar."
Thijssen took over in Brisbane in November last year, leading the Roar to 11 wins and five draws in 27 games in all competitions.
The 63-year-old said he would follow the fortunes of Aloisi's men.
"My children [in the Netherlands] watched every Roar game this year so I will have to do that when I am back and I will," Thijssen said.
"I will keep following the guys because now I am very much interested in Australian football.
"I want to follow the younger Roar players and see how their careers develop and I want to support all the guys I worked with this year and hope they win the prize [title] we could not claim this season."
The club also paid tribute to Thijssen.
“We have been very privileged to have Frans at the Roar,” it said.
“Everyone at the club has benefited from his experience, guidance and friendship over the past seven months.
“He has helped shape an important and significant chapter in the club’s history.
“The club’s playing group, fellow coaches, staff, sponsors, members and supporters say thank you and we all wish him and his family the best for the future.”