I guess it doesn't *confirm* anything, but the Close to You short features several remix melodies and/or musical motifs from Pikmin 4
songs:
youtu.be/wHGt44MdGzk?...
m.nintendo.com/shared/en-US...
youtu.be/u_9B4_ac0NM?...
#ClosetoYou #nintendo #pikmin #pikmin4 #pikmin5