CLEAN : a lot of work remains to be done in Brazil

The video discusses the challenges and progress in organizing a major event, highlighting the strong support from Brazilians as evidenced by ticket sales. It covers the ongoing preparations of stadiums, particularly in Sao Paulo, and expresses confidence in the event's success despite the work still needed.

What does the speaker suggest is necessary for a successful event?

What are the speaker's feelings about the upcoming event?