Update: 24 April 2019
Good news for those of you looking for options!
Classic textures are available as a free pack on the Marketplace.
Let’s talk about our new textures, current live in Java and Bedrock! This is where you can put all of your comments & feedback about the new default texture pack for Minecraft. We have been reading all your feedback and appreciate everyone's thoughts they have contributed so far.
Please put bugs with textures at bugs.mojang.com, and as always, be respectful and constructive in your commentary.