Encoding of character for new Japanese era name after Heisei

Phake Nick via Unicode unicode at unicode.org
Fri Jun 2 07:23:15 CDT 2017

Nowadays Unicode have encoded four characters, from U+337E to U+337B, as
character for the four most recent Japanese era name, which people are
using them quite a lot. In recent months, The intention for Japanese
emperor to resign from the duty have been announced and Japan is expected
to get a new era name together with the new emperor. It can be expected
that people would want to type a single character for the new era name just
like how people typed old era names now. However, with the new era name
cominh into effect in Jan 1 2019 and the name of the new Japanese era is
expected to be announced only half years ahead of the use of the character,
how will Unicode handle the new era name?
According to recent years Unicode release schedule, the announcement time
will only be a few weeks before the official release of Unicode 11.0, and
way passed the time of the beta. Is it possible for the character to be
included in Unicode 11.0, or a 11.0.1 released some dates after? We won't
know what the shape of the glyph would be until the era name being
announced and as the era name itself is included in the unicode character
description in past example, it is also not possible to come up with a name
for the expected new character before the era name actually get announced,
which mean if by usually process then an application cannot really start
until the era name announcement have been made. Is there some methods to
apply for inclusion of a character into Unicode without actually knowing
what the character would be?
Or if it's really too difficult to encode the character within the little
amount of time ahead of the era's start, would it be possible to first
reserve some codepoints for encoding of upcoming Japanese era, so that
people can know what code point they will be using instead of using PUA?
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