A report by the Nikkei citing multiple sources in China and North Korea with knowledge of the matter

Says that Kim Jong Un had shown intent to return to six-party talks on denuclearisation when he met up with China's president Xi Jinping last week.
The report also says that Kim could express a similar stance during talks with the US that are planned for May currently, but is unclear whether or not this will lead to a resumption in the six-party talks involving North Korea, China, US, Japan, South Korea, and Russia.
Well, the denuclearisation of North Korea is now built into the market's expectation so better cross your fingers that Kim has been studying on how to deal with the 'Trump handshake'.