Sylvester Stallone to do another 'Rambo'????

The macho man, Sylvester Stallone, known for his out and out action movies became famous after his heroics as Rambo in the action adventure movie where he bashes up all the goons. This 61 year old has recently acted in the 4th sequel of this action movie and the film has won many praises for him. The hero who has earlier dismissed that he would not pen another sequel now gave a twist to his fans saying that though the character becomes stereotyped, he still likes it and want to act in yet another movie. Will this star still has the energy in him to deliver such action movies is worth waiting for.