From what I know, the people here are using the frequence of new content being shown, qa_latest branch updates and other beamng related updates as a ground for speculation
but on topic, it would be quite funny if they're actually not planning to release for another few weeks...
So from what I understand, they don't often release it to youtubers. This means that it's something major. Do we think it's just PBR or possibly that new UI or even Career mode as well? I know they haven't teased the Career mode, but Naedox had a screenshot of his FPS before and after applying PBR and it seemed as though he also had a different UI, so I promise I'm not completely crazy...
The devs would shut the hype train down if it weren't happening soon, they are all online anyway just look at discord