As reported in the Telegraph, the Lutheran Church in Great Britain will consecrate the Rt. Rev. Jana Jeruma-Grinberga this weekend. The LCGB has only a few thousand worshipers, so I'm not so surprised that they've taken this long.
The Church of England, however, has hundreds of thousands of worshipers, and they're still dithering about how to introduce women bishops. Conservative Anglo-Catholics are threatening to walk if proper provisions of pastoral oversight aren't made. As I recall, there are some liberals who would rather not make such provisions. Indeed, making them would interfere with church unity.
In any case, the UK has had female monarchs and prime ministers before. One wonders why have they had to wait this long for a woman bishop.