MartianTom...... don't tell everyone about your remote beach! Incidently does such a beach still exist in England, which is where I presume you mean?
Seriously though I can't see the Wildcamping situation getting better here or on mainland Europe. Motorcaravanning has become a victim of its own success, just too popular. The old maxim "less popular is more" comes to mind.
Paradoxically this site, and others of course are just adding more encouragement.
If you take France as being the shining example that many of us hope follow, then the tendency there has been to become more restrictive, ie less tolerance of Camping Sauvage, charging for previously free aires, high campsite fees, restrictive access for motorcaravans.
I've been motorhoming since the early 70s to this day (with gaps inbetween) and in that time (at least to me) the changes have been very notable.
Still best look on the bright side, the 'vans have improved no end, just less places to put them.