I really doubt
Loewe will turn into
Coach. Stuart Vevers has not been the designer of Loewe in 5 years; Jonathan Anderson is now and he never worked for Coach. You might argue that JWA put Loewe on the fashion map. They are still producing Amazonas for full-priced lines as well; you can find them on the Loewe website still. All of the bag designs are currently available at the outlets, not just the Amazona. As for the outlets ruining the brands, Loewe - like Chloe, Givenchy, Dior, etc - do not make bags specifically for the outlet; they just sell out-of-season stock and these brands are all doing okay for now. They no longer stock the Amazona at Barneys though, so we'll see if it continues to be a best-seller. Please stop worrying.
On a more positive note, your new Amazona is lovely! The Amazona is very much catching my eye and I'm hoping to pick one up pre-owned in a bright color as my next bag purchase.