I predict that the current trends towards retro technogadgetry and green recycling duties will bring us the 'smart pigeon'.
These will have a data implant in the brain and there is plenty of spare airspace to give them the required wingwidth for full and unhindered flight. And for the green bit, when you've collected four and twenty surplus birds, you make a dainty pie fit for a King...
Sometimes you just need to accept that what you have is simply right - that there's no substitute for it.
I think the internet is a case in point. It's now possible (theoretically, at any rate) for one human being to communicate with any other human being, almost anywhere on the planet, within a couple of minutes or so. It's possible for that one human being to send a message to large numbers of other people at the same moment -I'm doing it now.
The internet enables all of us to access vast amounts of information within seconds - we can see more stuff than we will ever need to know; it's all out there.
What will replace it? Nothing - it's 'fit for purpose' as consumer legislation would put it.
I'd like to read that piece on the "dark web", it's something I've been reading about recently - a force for good with it's uses in countries that block much Internet access, and evil with its hidden child pornography groups