Beside the Korean comeback in 2017, Tohoshinki Japanese tours that the fans could safely confirm seem to be the ones expected in 2018 ^^*
Partial Translations:

- In 2018 SM’s biggest 5 boy groups would be having activities in Japan, operating profit expected to rise 2.4 times
[cr: Business Post]

- In 2018, from TVXQ to EXO, 4 groups to have Japanese dome tours with NCT possible Asia tour pending on their results.
[cr: 전자신문 via naver]
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Credits:
Business Post and 전자신문 via naver,
Translated by @snxy,
Posted and Shared by TVXQ! Express