Just a word of caution to set expectations. The "will be here soon" status has been there for a while, to the extent that it now evokes memories of GNU Hurd, Duke Nukem Forever. It will be ready whenever it will be ready, its in good hands, but don't hold your breath, try to work around it for now.
There are a series of milestones to hit: the runtime GC, the memory model, the low-level programming model using one-shot continuations, and how it affects libraries running over it (e.g. algebraic effects). Each of these have associated papers and talks (see the ocamllabs.ionews section), so it's not quite fair to compare it to Duke Nukem Forever :-)
Some quick links to recent papers: - memory model: http://kcsrk.info/papers/memory_model_ocaml17.pdf - programming model: http://kcsrk.info/papers/awkward_effects_ml17.pdf
Apologies if it came out harsh. Oodles of respect for all the work you guys are doing. Its a lot of work and that's why I said things are in good hands.
Would things like LWT or async help you in any way?