Few of those projects are still at the research stage (typed effects, modular implicits, unboxed types), with a handful of people working on them at most.
It is hard or even counter-productive to try to fit them on a roadmap.
The multicore project is(was?) a bit unusual from the point of view of OCaml development since it is a massive engineering effort with a focused team.
Nevertheless, I hope that we continue and extend the "OCaml compiler bimonthly" news to give more information about the ongoing work on the compiler.
Congratulations on the merge, and thank you for all the work that went into it!