Goodness knows, I'm detecting no willingness to do this whatsoever.
I've SOLId my UK EASA licence to Ireland, which hasn't been smooth, but has happened. We all know everybody's working to the same (inflated, and in many cases far beyond ICAO minimum) standards, we know that you can't work outside of your own territory without the necessary work permits anyhow - so there is absolutely no value in making it difficult for people to cross-credit licences. It is just authorities both sides of the Channel / Irish Sea being difficult for the sake of being difficult.