I hate to break it to you but WebPack is also riding the peak of a hype cycle right now.
It doesn't natively support the future ES6-module standard.
Once browsers start providing native module loading support, devs will likely migrate en masse to JSPM. JSPM is the (previously missing) package manager for front-end libraries. It supports transpiling (babel, traceur, typescript) out of the box and also handles bundling.