10J.... Any date this year would be a stretch of a long bow, but maybe ASA don't have a long bow? As you would know consultation (in AvSEF) still needs to take place and a safety case provided to industry and then when agreed (?) upon an AIP SUP needs to be drafted and approved by CASA and then distributed, not only to those near BNA/MNG but to all that may use/transit that airspace, followed by an education program. ASA have not yet demonstrated any professionalism in this proposal and certainly no transparency in their thinking. Maybe it is time to think outside the box and for ASA to seek outside input?
Of course, if there is political pressure, anything is possible.