Rocky is a series of boxing films based on the eponymous, fictional character Rocky Balboa, played in each film by Sylvester Stallone. The films by order of release date are: "Rocky" (1976), "Rocky II" (1979), "Rocky III" (1982), "Rocky IV" (1985), "Rocky V" (1990), "Rocky Balboa" (2006) and "Creed" (2015). The film series has grossed more than $1.4 billion at the worldwide box office.
Can we infer the following?
Sylvester Stallone will play Rocky Balboa in a future movie of the series.

pick from the following.
+ Yes.
+ It's impossible to say.
+ No.
The answer is:
It's impossible to say