It looks like US-ROK exercises will go back to Key Resolve and UFG level and diplomacy with Japan will be enhanced if I am reading the tea leaves correctly from President-elect Yoon’s recent statements:
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South Korean President-elect Yoon Suk-yeol vowed Thursday to strengthen strategic alliance with the United States, build a strong national defense to deter North Korean provocations and pursue a future-oriented relationship with Japan, hours after winning the nation’s closely contested presidential election. (…..)
He promised to reconstruct South Korea-U.S. alliance and strengthen comprehensive strategic relationship with Washington by sharing the core values of human rights, market economy and human rights.
Earlier, Yoon talked with U.S. President Joe Biden on the phone prior to his visit to the Seoul National Cemetery and they affirmed strong bilateral alliance and close cooperation, according to PPP officials.” (…….)
In relations between South Korea and Japan, it is important to find out what will be beneficial to both countries and to the people of both countries in the future rather than in the past,” the president-elect said.
Yonhap
You can read more at the link, but Yoon has promised to respond “sternly” to any illegal North Korean actions or provocations with the international community. It is almost certainty based on that statement that North Korea is going to launch some provocation to test Yoon once he is President.