This entirely depends on whether or not Nintendo left the Micro USB port on the system, and also if those involved with Hakchi2, or anyone else, for that matter...still care enough, at that point, to attempt to get it to run on the mini SNES. My opinion is that Nintendo did the same thing that many companies have done in the past...repackaged parts in new products. The shell may look like a mini SNES, But, the interior, down to the nand flash chip, may be identical, even with the same memory limitations. They may have had X amount of parts for the mini NES systems, and stopped production of the units. But, they still have all the circuit boards, etc, leftover. They would likely use them for the mini SNES, or in a hopeful re-release of the mini NES. If they keep things up, we all know they will HAVE to increase memory, so they can get 21 N64 games onto the 3rd incarnation of a mini System!
Hell, they may not have changed much, and we may be able to just directly connect the mini SNES, and use hakchi2 with it, as is! But, in any case, yes...it is very possible!