The Brazilian says he does not know how much playing time he will get at Stamford Bridge next season and will wait to see if any top-flight clubs are interested in his services
The 19-year-old joined the Blues from Sao Paulo in 2011 but spent the second half of last season on loan at Malaga.
The Brazilian says he does not know if he will be given many first-team opportunities next season and is open to offers, although he would like to remain in England.
“It's hard to say how often I will play or if I will play at all," he told ESPN Brazil. "We have to wait and see if any Premier League clubs will be interested in me."
Piazon is, however, delighted with the arrival of new manager Jose Mourinho from Real Madrid and is looking forward to playing for the 50-year-old.
"I am excited, everything will change," he added. "It will be very good to work with someone like Mourinho."