Lego Super Mario received a firmware update this week and it added a new feature to Lego Mario: he now calls out for Luigi!
LEGO itself responded via Facebook, stating: “We did notice that LEGO Mario has started calling for him, we’re looking into it and hope to have clarity on why this is soon. Stay tuned!”
So, we can likely expect Luigi popping up as a LEGO figure as well.
Source: Nintendo Everything