I'm just noting here. Both the M2 Macbook Air 13" and M3 Macbook Air 15" have BTO dates stuck February 13-17th, (has been since the end of last week) and you can not pay to have them shipped faster.
M3 Macbook Air 13" has normal BTO shipping times February 11-13th, and you can pay to ship faster with a delivery time of February 10-12th.
Apple most likely will keep the standard M3 Macbook Air 13" and drop the price, so in-store stock will stay the same and production continue. The M3 15" and the M2 13" have probably ceased production and will be removed from stores when the M4 arrives.
I am thinking it will be a press release/website update on Monday, February 10th, and in-store on February 14th.