Dr. Richard Marks, head of research and development at Sony Computer Entertainment America, has said he thinks it would be unwise to ditch the traditional controller in favour of a motion-only one when the firm comes to releasing a PS3 successor.
"I don't think that makes sense," he told Gamasutra. "I said that pretty much from the beginning that we're not trying to get rid of the gamepad.
"The gamepad is a really good abstract device. It can map to so many different things. It doesn't map one-to-one to those things, but it doesn't need to for a lot of game experiences."
However, Marks said he thinks that standard game controllers can still be off-putting for some audiences.
"It is still intimidating to some audiences, some people. And so, those people might like Move better. So, I think having both offered to people that want to play is the right choice right now.
"I think the DualShock, it's just better for some experiences, but the Move is better for other ones," he added. "There's just no way to combine them and just say one is the right thing to have. I don't mean there's no way to combine them. I mean just throwing one of them away is not the right choice."
Sony announced a new PlayStation Move initiative at GDC this month designed to let academics and hobbyists create applications using a PC, Move controller, the PlayStation Eye and PS3.