Well, the interview with Kim did not provide any more information than we already got. He, as face of ISU, tries to present himself as available and open to conversation, yet all the answers were general, avoiding any details or giving a solutions to a specific issues.
As for combined all-skating worlds, I'm not against the idea of trying new formats of events, let's see how it works, how it's perceived by athletes and fans. I think it's sth that can be tested and organized once in a while (e.g. every 4 years) if it's successful.
However, I do have some reservations about how many skating events are currently being organized in China. I would prefer not to give too much power to one federation and keep the diversity, it just so much more interesting when competitions are held in different places, cultures and with different crowds. Not to even mention homecooking factor in a judged sport. I get there are only few venues that can handle this format of event and federations nowadays are reluctant to hold big events because of finanacial burdens but if ISU wants to push for that format, they need to address this issue at first.