No, I have not heard it confirmed anywhere in fact it has all gone very quiet.
The story was reported in a number of newspapers around June or July 2015. The BBC confirmed that a script was in development. One of the original writers from the early series of The Brittas Empire was working on developing the script.
In January 2016 Chris Barrie said that he did not know if it was going ahead or not.
http://www.beyondthejoke.co.uk/content/2393/news-brittas-empire-–-back-or
Not heard much about it since then.

Sparks Moran: "It was dusk. I could tell 'cause the sun had gone down"