Completely unrelated to one another, but I guess you've dropped contrastively linking everything to IU and now specious connections to MHJ are in vogue.
Secondly, who in their right mind links a goddamn Kookielit video, the most clickybait, terrible, incorrect Kpop channel around. I watched the first few minutes of that video and it's completely fabricated like 10 things.
Idle may or may not leave Cube, but the only relevant point in this entire thread was someone bringing up Yuqi's very recent comments that 'we're mostly joking' and that they acknowledge they are treated well in Cube.
Yuqi has also spoken at length about how unhappy she was in her year of promoting in China during Hiatus solo. People speculating she'll just run to China at contract end don't really know the group very well, clearly.
She will obviously probably focus more on there - but she wants to do music, not just do variety. That's just not the market in China. There's about 15 different pieces of evidence over the last several years where she's discussed that, but I hardly expect this forum (who link Kookielit videos of all things) to have even the slightest idea of that.