According to George Lucas, a 5th Indiana Jones movie may be possible in the future. In an interview with The Sunday TImes, Lucas said that if they could collaborate an idea that sounds good, they would do it. Which basically means in George Lucas vocabulary, “Yea, we’re doing another one.” He also said that making Indiana Jones 4 was a challenge because multiple people had multiple ideas. People wanting it to be this or that way, Spielburg wanting to make it like the originals, Lucas wanting to take it in a new direction. Indiana Jones 4 scored a hefty $314 million in US box office.
“Well there’s your problem!”