The endless proclaiming the death of music is simply preposterous; there is not one shred of evidence that music is 'dying' except that which is buzzing around in his head. It is more 'alive' in so many ways than ever before.
Are audiences for classical music not getting older and not being replenished by younger ones?
I think you may have an unintended double negative in here; assuming the "not" between "music" and "getting" to be the redundant one, whilst there may be some evidence of classical music audiences getting older, I don't believe that there's anything like enough to make it a cause for major concern and certainly insufficient to justify claims for its impending demise - claims which, let us remember (how could we forget?!), Mr Lebrecht has been making so repeatedly over so long a period now that one could almost make a minimalist piece out of them.
Do classical CDs have much of a future (at least those which are expensive to produce) in an age of mass copying and internet downloading?
Yes, I think that they do; a compromised one, undoubtedly, for the very reasons that you mention and the more expensively produced ones may indeed risk becoming something of an endangered species without some form of private and/or public subsidy, but neither the demand for them nor the sheer amount being produced suggests "the death of the classical CD", as Mr Lebrecht would have us all believe.
Is the whole system of public funding for music not beginning to disintegrate?
If not quite that, it's certainly getting frayed around the edges, but the public purse is, as I've said before, not the only source of funding (and especially not now that there are so many holes in that purse); as I have also said previously, however, there is nevertheless a grave danger in governmental complacency in such matters along the lines of "we don't have to allocate too much taxpayers' money to commissioning challenging new "classical" music because it's a minority interest and someone else will pay for that if they want to".
Does classical music not (at least in the UK) get less coverage in the national press than ever before (and popular music more so)?
Sadly, that is all too true.
Is there not a loss of faith in defending the value of some sort of musical 'high culture' as a whole from many quarters? Are promoters, commissioners, radio stations prepared to really take the risks they have done in the past in commissioning new work that will have more than a transitory impact?
Respectively, no, there isn't and not in all cases, I think.
Or is classical music in danger of being superceded by the work of Karl Jenkins (who now appears on the A-Level syllabus) and the like? If so, it might not have literally 'died', but it would certainly be brain-dead.
Nicely put! - and one can but sympathise with its present plight in the face of an environment in which Jenkins's work finds itself on an A-Level syllabus (a situation sufficiently suspect that I'd like to know just how and through whose auspices it got there) - but there's no evidence that such stuff is superseding, for example, the presentation of many of Carter's works in many countries this year; OK, I know it's all leading up to the celebration of 100 × 365 days(!), but I don't really think that the arguably unique prospect of the impending centenary of a still active composer would alone be sufficient to ensure so many performances, let alone so many audiences for them, however effectively it may be marketed. Who will remember Jenkins in 25 years' time? I cannot, of course, be certain, but I do know that if a composer really wants to court certain death, then he/she needs only win Masterprize.
What Lebrecht seems determined to ignore when he goes into his "death of classical music" mode (as he is all too often wont to do) is the consistent and continuing demand for it (and I don't mean for the likes of Jenkins, either) and, in any case, as I observed to someone recently, if classical music really is dead, who needs Norman Lebrecht to keep on writing about it?