U+1F1AD: SQUARED FN or MASK WORK SYMBOL?

[t.b.y.taoboyu at foxmail.com]

Unicode mail list,
    I am seeking the symbol on the Fn key and have find it encoded as U+1F1AD as specified in L2/17-072<https://www.unicode.org/L2/L2017/17072-symbols-9995.pdf>.
ISO/IEC JTC 1/SC 2/WG 2 - Unicode<https://www.unicode.org/L2/L2017/17072-symbols-9995.pdf>
Since then, ISO/IEC 9995-7 was developed further. The last version of the complete standard dates from 2009. Thereafter, an amendment was released in 2012 with several new symbols reflecting the need of multilingual keyboards in support of the cultural diversity. Such keyboards are easily accessible especially when not being confined to physical keyboards with fixed engravings.
www.unicode.org
However this code has been representing MASK WORK SYMBOL since Version 13.0<https://www.unicode.org/charts/PDF/Unicode-13.0/U130-1F100.pdf>.
^h=2 (y WØ©¢ G$M Ô h NéP> öÚª D ¾r Ç fÌa,õIò.ÎDßAZÍáù kY0Ë Uì%úØÓV dßg - Unicode<https://www.unicode.org/charts/PDF/Unicode-13.0/U130-1F100.pdf>
^h=2 (y WØ©¢ G$M Ô h NéP> öÚª D ¾r Ç fÌa,õIò.ÎDßAZÍáù kY0Ë Uì%úØÓV dßg
www.unicode.org
And U+1F1AE and U+1F1AF, representing SANS-SERIF CAPITAL U ENCLOSING ZERO-NINE and SANS-SERIF CAPITAL U ENCLOSING ZERO-F in the proposal, have not been assigned even in the latest release, Version 16.0<https://www.unicode.org/charts/PDF/U1F100.pdf>.
The Unicode Standard, Version 16.0<https://www.unicode.org/charts/PDF/U1F100.pdf>
Range: 1F100–1F1FF This file contains an excerpt from the character code tables and list of character names for
www.unicode.org
Can anyone answer:

  *
Which stage is that proposal in?
  *
Why is there inconsistence between the proposal and the Unicode standards?

ISO/IEC JTC 1/SC 35,
I have noted ISO/IEC CD 9995-7<https://www.iso.org/standard/90275.html> under development.
[https://www.iso.org/modules/isoorg-template/img/iso/iso-logo-og.png]<https://www.iso.org/standard/90275.html>
ISO/IEC AWI 9995-7 - Information technology — Keyboard layouts for text and office systems — Part 7: Symbols used to represent functions - ISO - International Organization for Standardization<https://www.iso.org/standard/90275.html>
Within the general scope described in ISO/IEC 9995 1, this document specifies symbols for functions found on any type of numeric, alphanumeric or composite keyboards. Each of these symbols is intended to be considered as universal and non-language related equivalent of names for the function they represent. Names of functions and descriptions are given in English and French.
www.iso.org
Will the coming version resolve this problem?
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