It won't die out if ISPs are only offering v4 and not v6 as well (as Plusnet are). Right now most of the internet backbone is v6, but ISPs are still at v4. That means that if I convert my LAN (which is probably just a case of updating firmware and flipping some switches) it's pointless as the v6 traffic will have to downgrade to v4 before it hits the ISP. Which means I still need a v4 IP allocated to me.
Unfortunately until IPv4 dies off hacks like these are probably going to be necessary, if we're out of addresses and IPv6 still hasn't been properly adopted then we're out of options.