There was a long discussion about this on an American web site and it seems they have stopped production but there is enough replacement parts to keep them going for the forseeable future.
A company in Bulgaria are already making parts, enough to make a whole R93 rifle, so regardless of what Blaser do there will not be a problem.
It seems the Bulgarian company has looked into this and the Blaser patent expires some time in 2012 so they have not gone into world wide advertising just yet.
I have already had a Bulgarian Saddle mount, identical to the Blaser and at £220 very good indeed.