Bing said "recently weâ€™ve gotten a number of questions asking if we plan to support the recently announced Expanded Text Ads format on the Bing Ads platform. The answer is yes." "The ability to Import from Google AdWords will ensure that you can seamlessly move your carefully crafted Expanded Text Ads between platforms. This will save you time and get you started with Expanded Text Ads on Bing Ads even faster," they added.
Here is a chart showing the support:
Here is the add ad form:
Good for Bing Ads for being on top of this.
Forum discussion at Twitter.