According to some recent news articles, Indonesia has been conducting a diplomatic blitz to persuade the US and other Western leaders to attend the summit, despite their boycott threats over Russia’s involvement in Ukraine. Indonesia’s foreign minister said that they respect the sovereignty and territorial integrity of Ukraine, but they also want to maintain dialogue and cooperation with Russia as a G20 member.

And it seems that Indonesia’s efforts have paid off, as some Western leaders have signaled confirmation of their attendance at the summit. https://www.voanews.com/a/following-indonesia-s-diplomatic-blitz-western-leaders-say-they-ll-attend-g-20-bali-summit-/6640915.html

However, the situation is still tense and unpredictable, so Indonesia will have to balance its role as a host and a mediator between the conflicting parties.