I raised this question at RIPE 78 in Reykjavík in 2019.
I would like to host RIPE probes but the network I want to use for them has no possibility to have DHCP services, but router advertisements for IPv6 are trivial, and our default when we add IPv6.
I would really like it if the probes could auto-provision from that and then when it contacts the cloud, it could get IPv4 information from there.