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The support for PTR records for IPv6 addresses was actually added a while back. By default, each Droplet with IPv6 enabled will be configured with a single IPv6 address. This is the address that will be used for any PTR records that will be generated for domains pointing at your server. Like with IPv4, if the hostname given to the Droplet is an FQDN, the PTR record will be generated automatically.
Hope that this helps!
IPv6 is now available in our SGP1 datacenter. Check out the announcement for more info and future plans:
And here’s how it enable it:
We’re glad to say that IPv6 is under development. However, there is no ETA available currently, beta access is set for October 2013. See http://digitalocean.uservoice.com/forums/136585-digital-ocean/suggestions/2639897-ipv6-addresses