Thanks Dave,
Yes, that is definitely official, straight from the top.
As to how long the process should take, it was designed so that major airports should not be changing regularly. There should be very few additions, and very few deletions to Appendix B, quite simply because airport traffic and complexity really shouldn't be changing that drastically. The Divisions submitted the original list based on what they felt was appropriate, and if the airport didn't make the list then, chances are it isn't going to at some point in the future.
As such, the EC is normally presented with any proposed changes at the quarterly meetings. If there is some pressing major airport that can't wait until then, we can certainly bring it up before the meeting. This is currently the case with MCO, a special center in Australia, and a few European positions relating to callsign changes. They need to be voted on immediately. So once submitted to the EC, it theoretically shouldn't be any more than 3 months, unless something goes wrong, as was the case with CVG.
As far as how long it takes to be approved on the VATUSA side, that is up to Gary. The Division Director must sign off on the airport first before it even gets to me, and if the Director does not approve the major airport, there is no recourse for submitting it to me or directly to the EC. If the DD denies an airport, it is denied and that's the end of the story.