The upcoming 12-inch Air has the fewest amount of ports ever on an Apple computer, as can be seen in the rendition above. On the left side is a standard headphone jack and dual-microphones for input and noise-canceling. On the right side is solely the new USB Type-C port. Yes, Apple is currently planning to ditch standard USB ports, the SD Card slot, and even its Thunderbolt and MagSafe charging standards on this new notebook. We must note that Apple tests several designs of upcoming products, so Apple may choose to ultimately release a new Air that does include the legacy components, though there is very little space on the edges for them.
My first Apple laptop was a 12-inch PowerBook which I loved. My wife wondered why I didn't get the 15-inch or 17-inch which were other options. I said it was something about that 12-inch PowerBook that looked and felt right.
I don't think Apple would ditch the Thunderbolt connection and MagSafe both. Seems like a bit much, but I suppose it's possible. Only time will tell.