What really worries me is how many different directions people want to take things.
In my opinion what made Meteor so awesome, and why it grew so fast at the beginning was that it was incredibly simple and made it ridiculously easy to get s**t done compared to other frameworks.
What killed it, was when people started overcomplicating things… breaking off bits of meteor to mix with other frameworks, pushing aside Blaze so they could hook up that shiny new React thing - even though React wasn’t designed to work in the same way and it needed a ton more boilerplate.
The community just got fragmented with people all doing things differently, none of it properly integrated or documented, but no-one really giving any love to what was there originally.
Personally I’d like to see meteor return to its roots. A very simple, clean framework with a very low on-ramp, where people don’t need to learn React or Vue or [insert latest front-end craze here] to get started. Blaze was awesome for that and is perfectly capable of making a solid UI. With a bit of TLC it could probably be a lot better too.