There certainly isn't IDN WG consensus on IDNA as the long-term IDN
solution. In fact, many of us suspect that there's consensus on the
following statement, which implies that IDNA is merely temporary:
The long-term IDN solution will encode Unicode characters as UTF-8 on
I doubt we'd reach consensus on that either, since many of us suspect
that the following statement is closer to the truth:
The on-the-wire encoding of IDNs is irrelevant; what matters is the
behavior experienced by users.