Four years ago he was part of Croatia's memorable campaign when they reached the last four.
"It is time to start building a new team," Prosinecki said.
"I've had a short break after an exhausting season and when I raise my fitness there will be no problem.
"I want to prepare in the best possible way so I can give my best."
"I hope Croatia will make a memorable result in Japan with which I would retire my old international shirt."
Croatia start their campaign in the Far East against Mexico and Prosinecki is convinced that the match is key to their chances.
"Opening games are always important, but I think this one is crucial - we have to seek victory."
However, he added a note of caution.
"The most important thing is to stop livig in the past. In France we were stronger."