Better, but the recommended minimum is a /64, and ideally a /48 (so you can subnet it into /64 as a customer)

Anything smaller than a /64 and things like SLAAC will break.

Think we might see this offered in the future? And do you also offer dedicated, or just vps?

https://docs.netgate.com/pfsense/en/latest/network/ipv6/subnets.html