KGI Securities analyst Ming-Chi Kuo has told Mac news website 9to5Mac that he predicts Apple will release a 12-inch Retina MacBook either in the second or third quarter of 2014.
Kuo claimed the laptop will sport an entirely new design, though he didn't mention whether the new device would be a Macbook Pro or standard Macbook.
The Macbook Pro range currently sports 15 and 13 inch options, but Apple doesn't currently offer any 12 inch configurations of any of its laptops. The report also said the 12 inch model would be "as portable as current 11-inch MacBook Air and productive as 13-inch MacBook Air."
Ming-Chi Kuo also suggested Apple may release a lower-cost iMac, alongside a sixth-generation, 9.7-inch iPad with 30-40% higher PPI (pixels-per-inch) than the current Retina iPad.
The next Apple event is rumoured for 22 October.
Apple CEO Tim Cook previously promised that 2014 would be a major product year for Apple, meaning that the company is likely to be refreshing most of its popular product lines.
The iPad is also potentially due for an upgrade later this year, with rumours suggesting retina displays are on the cards.