@asm0day, you can see here the player calls loadTextureAtlas. There it downloads the .atlas file and collects a path for each atlas page image using parent + "/" + path where path is the image name in the .atlas file. Currently the best you can do is modify the image names in your .atlas file. Eg instead of page1.png you could try ../otherdir/page1.png or whatever you need. If that doesn't work, worst case you could modify the AssetManager code.

We'll see what badlogic thinks about allowing you to specify a list of URLs. Or maybe the image names could be used as URLs?