Dear Joanna,
I don't know if you're still interested in what teachers are doing after all this time...
I teach English in Germany. I am originally from London and speak RP. I hate the new accent which I hear increasingly when I go back. I also hate the way it seems to be so fashionable to raise one's voice at the end of a sentence which makes most statements sound like questions. Sorry, I'm old fashioned and still maintain that RP is by far the best English to be teaching abroad because it is the language best understood by everyone. Most of my students don't talk to native English speakers anyway so it is essential that they speak clearly.
Best wishes,
Margaret Moldenhauer