Math Symbols: BF vs EBAE

The following question will be posted to both the Braille Formats and the Literary page so we can get feedback as appropriate.

We have a couple of questions concerning mathematical symbols and the new Braille Formats 2011 and would appreciate your insight. The mathematical symbols in Appendix G of Braille Formats 2011 does not address spacing, the use of the dot 4, etc. like its predecessor Braille Formats 1997 does/did. The following disclaimer found in the BANA Braille Codes Update 2007 on p. F2 leads us to believe that these symbols and their guidelines will be in the upcoming edition of EBAE:
“In the upcoming new versions of English Braille, American Edition, 1994: Revised 2002
(EBAE) and Braille Formats: Principles of Print to Braille Transcription, 1997 (BF)
there will be a structural change in responsibilities. EBAE will have the responsibility for
the formation and use of signs, symbols, and indicators. BF will have the responsibility of
assigning print-to-braille formats.”

1) Is that correct?
2) Do you have an idea as to when the new revision of EBAE will be complete?
3) Lastly, we are following Braille Formats 2011. What rules/guidelines would you suggest we use for mathematical symbols i.e., spacing, dot 4, etc.?
Thank you so much for your help.