Idea about end update,world saving, shaders

Hello Minecraft I'll suggest some updates, first end update. End is very boring and easy and I think you guys should add biomes,mobs,structures to it. Now worlds I think world saving should be easier today I deleted Minecraft to redownload it and my worlds are gone lol (I'm on bedrock). And last. Shaders, I think you people should make some shaders free I'm not saying every shaders I'm saying shader which is very simple and just gives more glow and makes game more realistic looking, all I'm saying make shaders free like in java and I understand Minecraft has to have good monetisation but atleast atleast make very basic simple shaders free. You could even grind for shaders that's another idea so all I'm saying make shaders yourselves and make them so game feels more fresh.