I'm not too sure, but i'm in the same position as you! I'm hoping to see LND but in Febuary, on a saturday matinee also hoping that Ramin and Sierra will be performing. I know Ramin dosen't do Wednesdays as he says 10 shows a week is too much, so he lets his understudy do them, but i'm not sure about Sierra. Ramin has a 페이스북 page, and people reguarly post 코멘트 if Ramin is ill 또는 if he is not performing on certain dates. His holiday dates are 24th to the 29th of January, so depending if he's ill 또는 not, he should be performing :) Hope this helps
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