No idea what to make of this, but DK just posted at the PBC blog that the Miguel Angel Sano investigation is over and he'll be "partially cleared," meaning that they say that he is who he says he is, but his age is "undeterminded." The Pirates, and everyone who's scouted him, seem to be sure he's 16, but prospects that are caught lying about their ages are suspended for a year. I have no idea how that applies to someone who's age is "undetermined." I'd assume he's in the clear if it's not directly proven that he's lied, but I don't honestly know. I'll post any updates I find this afternoon.
UPDATE (3:57)- DK's post (same link) is updated with all kinds of details, so I'd recommend you check it out. It reads to me like MLB found at least one indication that he was 17, not 16 as claimed (which isn't incongruous with what the Pirates found in their bone density test that placed him between 16 and 17), and is pressing him on admitting his true age because if it's found that he lied about his age at all, the US consulate won't grant him a visa and he won't be allowed into the United States.