@arunoda: In your blog post you asked what would be left of Meteor if the data layer were to be replaced. I (and many others) have been wondering the same.
MDG itself has admitted that React is a better UI layer. Consensus appears to be coalescing around Webpack as a better build system and that obsoletes Atmosphere. Your proposal to replace the data layer very likely removes the need for DDP as the RPC layer of the stack, except possibly as an implementation detail.
What is your opinion on this? What is left? Is it more than a curated list of NPM packages, a best practices guide and a hosting service?