Keane netted both goals in Celtic's 2-0 victory over Falkirk on Sunday to take his tally to five in seven games since moving to Parkhead on loan from Tottenham. The Republic of Ireland international's arrival in Glasgow sparked the sort of adulation that Moravcik and Henrik Larsson received from the Celtic fans.
"Robbie played two very good games against France for Ireland, I watched both games," the Slovakian said. "He's still a very good player. He had a hard situation at Tottenham because (Jermain) Defoe and (Roman) Pavlyuchenko took over his place."
He added: "Maybe this is the future for Celtic - build the team around Robbie Keane as a captain and maybe as the main man for Celtic, because he has a couple of years ahead of him.
"To finish at Celtic would be perfect for him, the club and the fans.
"He's got a winning mentality, this is good for Celtic. They have to bring players who is good with him up front.
"It's up to the manager to build a new team because this team is not good enough if they don't have results."