There is a good possibility for interesting further research.
Part of this paper was about trying to get an idea of how IPv6
networks are deployed and secured in the real world and not
only in test environments. Since the lack of IPv4 addresses is
pushing network administrators towards IPv6, this area is ever
changing. It would be interesting to do the same research
periodically to monitor the progress of the transition towards
IPv6. In addition, results from such research might be used to
motivate people to speed up the transition and urge them to
secure their networks,