If you cannot find out, or get, confirmation of stock available at a local official Apple Store
or via online official site (sales support may offer ideas if you call the main online portal)
you could consider getting a higher spec macbook air or a macbook pro, and have more
computer for the money. Sure, it won't be the latest newest product named MacBook.
{The new 12-inch MacBook is the first new model named as such, not an Air or Pro, in
about 5 years; and has a certain niche market to fill. Kinda like an Watch + iPhone.}
Compare specifications and then look ahead. No point in buying a computer that may be
less than you need in 2yrs, or before an extended optional AppleCare plan would expire.
Since these are not upgradable after purchase, additional resources won't be available
as the OS X and applications forage a new path to their own future, it can't keep up. So
the advice on this angle would be to buy more computer (higher configuration) than you
would presently think you need. It may not be quite as pretty, but beauty is often deeper.
In any event...
Good luck & happy computing! 🙂