Probably not. If this deal is true and holds, say good-bye to NPT. Nuke domino started from N. Korea, and will move to Japan, and the rest. That is just for starters.
Besides, we are not even sure if China will really act to our satisfaction.
I guess many are interested in listening to what KYJ and the Chinese are talking about:
A DPRK government delegation led by Kim Yong Jae, minister of External Economic Relations, Saturday left here to attend the Belt and Road Forum for International Cooperation to be held in China.
http://www.rodong.rep.kp/en/index.php?strPageID=SF01_02_01&newsID=2017-05-15-0002
http://www.rodong.rep.kp/ko/index.php?strPageID=SF01_02_01&newsID=2017-05-15-0021
I will post the original below: