Richard, 72, has been receiving treatment in a London hospital for the last two months.
There were fears that he wouldn't be well enough to start filming the third Harry Potter movie, The Prisoner of Azkaban, which is due to start shooting early next year.
Millions of fans
"Yes he is definitely looking forward to starting the next Harry Potter movie," she said.
Richard, who's gained millions of new fans since he appeared in the Potter films, is signed up to play the head of Hogwarts in all seven movies.