Have "Operation Victory Arrow" or "Brave Witches" been released officially outside Japan? Have Strike Witches: Operation Victory Arrow and/or Brave Witches (and its OVA) been released on Blu-ray or DVD with either English sub or dub?  

I can only find Strike Witches: Operation Victory Arrow in Japanese exclusively while only finding Brave Witches DVD from Malaysia which I believe is technically a bootleg and of poor quality.

If not, has a release been scheduled for them?
You'll find the info for bd-dvd release for brave witches here.

Meanwhile , the operation victory arrow dvd's are only in japanese , although they may be in subbed format so you should check them out , there has been no official info on the dubbed release of dvd's.

Although crunchyroll seems to be streaming these series so you can check that out as well.