We will finally announce our next step, so:
In next days Krastorio will be renamed as "Krastorio Legacy", and will be update rarely only for small fixes,
meanwhile we will work on Krastorio 2! That will be a new mod (so Krastorio LegaCy still downloadable and playable, obviously incompatible with Krastorio Legacy) but will be different from the predecessor. Few new machines, something removed something changed, revisited production chain, focussed to be a balanced experience, for Factorio veterans, not an impossible mod not an easy one not cheay, just a Factorio for bored played with enjoyable production chain. Graphics revisited too, with a code improved and more structured.
Probably will have his own graphics mod like Krastorio Legacy have now but, aswil will be deprecated soon, and will be not necessary for Krastorio 2 but will remain necessary for Krastorio Legacy, and a copy of all library will become internal of the mod with new other library.
Release date? Who knows... (not 2019)