Comment Efficient Use, Transition, Replacement (Score 1) 275
As with any finite resource, management strategies typically follow the course of: more efficient use, bridge transition to a more plentiful resource, and gradual adoption of the new resource. There is nothing you can do to thwart or change that reality unless you have the charisma to foment a revolution or you're grotesquely rich and powerful.
IPv4 will be no different. Unused addresses or public addresses used on private equipment WILL BE reclaimed - albeit not without some nasty fights. Four to Six gateways and ISP NATs will stretch the resources a bit more. Finally, IPv6 will be gradually adopted at a pace that is not a financial shock to the big players.
Along the way, power brokers and power hoarders will try to exploit the situation for greater control of the internet or segments thereof.