JNS.org – The discovery of a 1,500-year-old Byzantine arch was revealed Wednesday at a ceremony attended by Israeli Construction Minister Yoav Gallant in the Jewish Quarter of Jerusalem’s Old City.I wouldn't exactly say that the arch was "newly" discovered. There was a notice about it some ten years ago (see here). But that's just the headline. The actual article says "during recent excavation work," which is right enough.
The arch was discovered during recent excavation work to uncover the layout of the street between the Hurva Synagogue, considered Israel’s most important synagogue until the 1948 War of Independence, and the Cardo, Jerusalem’s main street during the Roman era.
Gallant also unveiled the second mosaic in the “Jerusalem of Mosaics” project and viewed artifacts that were recently unearthed beneath the Tiferet Yisrael Synagogue. ...
More on the Cardo mosaics display is here and here.