Bump. The situation has now changed and Cisco, Juniper, and Alcatel now support VPNv6.
i sense some misunderstanding here.
MPLSv6 or (MPLS over IPv6, that kinda stuff that involves LDPv6) is one thing.
having unicast labelled IPv6 transport in the global routing table (6PE) or the same inside a VRF (6VPE) over an IPv4 MPLS network is a completely different thing.
the common of those two(+1) features above is that RouterOS doesn't support either of them. Cisco, Juniper & Alcatel, huawei and zte supports 6PE & 6VPE, and this is no fancy new stuff at all (RFC4798 / 10 years old, RFC 4659 / 11 years old). and i guess you were referring to this.
this latter two would be a reasonable request from Mikrotik to support. LDPv6 just got RFC'd 2 years ago in RFC7552. MPLS transport over IPv6 - i'd say let the big guys figure out all the pitfalls first - as it seems there are still some gaps in feature parity. there are enough surprises in "native" IPv6 alone
