New Dancer Banner limited run?

The Braves were introduced as New Heroes, meaning they are permanent
The dancers though, they are Special Heroes, most likely, they are limited

Good question. Would be actually really sad to have only green/neutral Dance pull only to have limited.
But would actually make sense because Banner is for atleast 1 month up if i see it right.

theyre most likely limited
as they are re-imaginations of existing heroes (except shigure, but he is also different from his usual setup)
they are comparable to spring or summer units
so they will probably be limited but might resurface in a future similar banner.