Although it has been speculated that Apple's rumored 12-inch MacBook Air could be unveiled as early as next Monday at Apple's March 9th 'Spring Forward' event, the latest reports as of Thursday morning are indicating that it's much more likely that the 12-inch MacBook Air could surface in June of this year at WWDC 2015.

The Wall Street Journal is quoted below noting that the new notebook should be ready around the second quarter:

Quote Originally Posted by The Wall Street Journal
While suppliers are gearing up to ship the new 12-inch MacBook Air in large quantities in the second quarter, Apple's launch schedule remains unclear, the people said.
The smaller MacBook Air would give more of an edge-to-edge keyboard, a smaller display, and an overall more compact design over current models. Some of the technical specs would include a retina display, a new Intel Broadwell Core M processor, and more.

Just yesterday, hardware specs were leaked on what appear to be one of the non-retina display MacBook Airs that could be unveiled next Monday at the 'Spring Forward' event. These models will retain the same design as the current MacBook Air with a bump in specs for speed and performance. It's unknown if these too will be pushed off until WWDC 2015, or if they will retain their expected ETA of next Monday.

Sources: The Wall Street Journal via MacRumors (image via Wikipedia)