https://www.ana.co.jp/en/jp/guide/pr...terminal-info/
Looks like no flight arrives into T2 at the moment but that may change from later this month when 15 flights (that's roughly 40% of all ANA international flights out of HND) begins to use T2 a day. Terminal of arrival flights will be random but back in the day, morning GMP-HND has been rotated into 2nd HND-TSA which now leaves T2. With that, one can assume the morning flight from GMP will arrive into T2. That's probably for the best once the arrival lounge opens but not for connecting.

All US flights won't move to T2 for now except HNL. All EU flights move to T2.