I am a bit late posting this, but it might explain why you have not seen Karen on CNBC Asia lately. She will no longer be appearing on CNBC Asia programming.
This is because she is moving to CNBC Europe. CNBC press release here: Karen Tso moving
From the press release, no time frame is giving regarding when she will start in Europe. In addition, I get the impression that she may not be a show host, but rather a correspondent that will appear on several shows. I may be wrong with this, as it is just my interpretation. Regardless, those of you who are CNBC Europe viewers are receiving quite the New Year's gift.