They are already 'working' on the future Handheld Generation
In an interview with IGN, Miyamoto says that he is satisfied with the 3DS hardware as it is.
In a recent interview with IGN, Miyamoto talked about the Nintendo 3DS and the company plans about a possible re-design.
When questioned about Nikkei's recent report about a "3DS XL", he said that Nintendo is more focused on the 3DS's successor than anything else:
Now, Miyamoto emphasized that he feels there is plenty more that can be done with this current hardware and 3D gaming in general.
And finally, when asked about the option of including a second Circle Pad in future 3DS models, Miyamoto said that the system's gyroscope as a way to accommodate that need.
Although its pretty obvious that a Nintendo exec. won't reveal any plans about a possible 3DS re-design (so people don't stop buying the current device), seems that he's pretty clear on this matter.
So, I think we shouldn't expect anything new in the close future?
NEWS SOURCE #1: Nintendo working on future handheld generation (via) IGN
NEWS SOURCE #2: Forum Thread #478116 (via) NeoGAF
Our thanks to 'Gauss' for this news item!