Although I think that bundle could never disappear completely, recently I read a lot of articles by some "front-end guys". What seems clear is that HTTP2 remove the need of bundling. Full stop. Somebody says that "bundling will be an anti-pattern". Also: HTTP2 support today is really high so I find the webpack approach outside Zope every day more interesting.
This take me to another question:
(...five secs of dramatic drum sound...)
Will Zope ever support HTTP2? Or it makes no sense?