Hey Hervé, nice to see you, and I hope you have been doing well. 🙂
We don’t have so much of a definite roadmap right now, as a huge to-do list. But we should, so we’ll make a point of doing that. I do know SSS and disp are very high on our priorities, but a viewport is less so for us than doing more plugins. The rough plan there is to extend the IPR with more functionality — picking objects, outlining objects, setting camera to view selection, and so forth. The idea being that this, plus a GPU implementation of IPR may be enough to avoid the need of an opengl viewport, but we’ll see.
Just curious — you were a lightwave guy, right? What are you using these days?