@Hyoscine I have contacted the official Qubicle dev, he said:
I can fully understand your concern. I have been very silent lately. The reason for that is that I am currently rewriting Qubicle which takes my full attention. I saw the necessity to do so because the feature requests that I got are no longer compatible with the core libraries. The new version will include a new render engine that supports PBR among loads of other very useful things that I don't want to disclose at this moment. Rest assured that I don't have nor ever had any intention to drop this project. I will go public with a list of new features as soon as I feel comfortable to confirm them. Rewriting a software is a long process and I can't name any ETA at this point. I do work on this fulltime since late 2016. Long story short: no worries, I won't disappoint you.
So I am impatient about it to since I love Qubicle, but from that, I really do feel good knowing that Qubicle has great future ahead.
I suggest you email him about any feature requests you have here: Support: email@example.com