Does anyone know if Coroutines plans at some point don't be a library? and become part of kotlin's core

No. I have asked this in the #coroutines channel and the answer was that coroutines are too large to be included in the stdlib.

I think I have to admire the plethora of libraries available for kotlin that make suitable replacements for Java equivalents - we're growing fast but the fact Kotlin wants to make sure they get stdlib right says a lot.

I like the idea of separate libraries, but when you work using some patterns it weighs a lot when deciding whether or not to use coroutine in some layers of the project, if it were in stdlib you would not doubt