If you demand this sort of privacy that you're talking about, it will be difficult to obtain in the near future also. Blockchain technology and the public ledger system are so designed that they give all the crypto users an easy access to view all the transactions and also to trace back the origin of these transactions.
bitcoin has never been fully anonymous and it has always been fine. some people seem to have a problem with that but that is oke because there are options that they can use like the real anon coins.
bitcoin or at least the on chain transactions will never change in that fact. there may be additions on side chains and second layers to improve the anonymity though.
Yes! you're right, certain improvements may be introduced in fact, but you cannot get full anonymity factor secureed with yourselves.