Around luchtime today, Danish Standards sent out a press announcement. I just found the English version: Danish Standards will change Danish vote:
“On behalf of Denmark, Danish Standards has decided to change the vote on ISO/IEC DIS 29500 OOXML from ‘Disapproval with comments’ to a vote of ‘Approval’.”
It is worth noting that the S142-U34 committee’s final recommendation to Danish Standards does not provide consensus on a change of the original Danish vote. That is made clear in a letter (in Danish) to Danish Standards from the committee chair, professor Mogens Kühn Pedersen.