It looks like these were added on today's Client on Blight. Blight Client 397.76.0
Feel free to test it out, by using the Patch to Blight option in Launcher's configuration button.
€ and Œ wasn't included as it won't render in the font library. Sorry about that.
This is what's included:
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwx yz `1234567890-=~!@#$%^&*()_+[]\;',./{}|:"<>?ßáàâãäåæçèéêëìíîïòóôõöøùúüýýñ£°ÂÀÄûÛÊÎÔËÏÖ ÜÆÇÉÈÙÓ