I've read on their new road map that the ilcdevteam was focuses more in the development of the DCB . if we look at in the new road map dcb is in development for the next 3 years if i am not mistaken.
You are correct the DCB is a long term process, it is very complex and needs a lot of time for improvements, if we are going to look at the new time line ,we'll see that it's a constant upgrades until year 2024 and would be extended as the demands rises.