In terms of the future of the trust network where there will be an increasing number of fit-for-purpose blockchains such as ones for proof of asset, proof of identity, proof of ownership etc., will there be a wallet to store all of an individual's blockchain needs?

Much like our conventional wallet now storing our cash, driver's license, credit cards and affinity cards. Is the BIP32 "standard" moving in this direction?
['https://bitcoin.stackexchange.com/questions/44387', 'https://bitcoin.stackexchange.com', 'https://bitcoin.stackexchange.com/users/36005/']
The Exodus Project might be of interest: <http://www.exodus.io>
It's a multi-currency desktop wallet with shapeshift (altcoin exchange) already built-in. You can already download a beta version of it, official launch is going to be this summer according to the projects homepage.

I can't find an example better than <https://www.omniwallet.org> right now, but I think there have been other multi-currency online wallets around for a while. Exodus however is the first dektop multi-currency wallet I know of.
Probably need a domain addressing scheme. Where domains are like:

* Bitcoin
* Amazon digital media library
* Apple iTunes media library
* Joe Blog's digital art library
* Government digital cryptocurrency

Where each domain implements their own blockchain. Allowing us the ability to store all our rights in a wallet or wallets of our choice.