Instead of a permanent renovation/restructure, I'd prefer something like they did at the Gershwin years ago (and which Wicked has managed to manipulate with great success)..
With all 3 Mezz walls in at the Gershwin the capacity for Wicked was 1773. When the Wicked producers removed the center section wall permanently, in August 2004, the Gershwin capacity bumped up to 1809. Then by January 2014 the total capacity for a single week topped out at 1926 (there were a few weeks at 1928). According to the grosses, in 2017 the full capacity of 1926 was used 50% of the year at 23 weeks. The other half of the weeks the total capacity was either 1807 or 1867. By 2019, it was 14 weeks at full 1926 capacity.
Producers for shows at the Broadway would be smart to look into Wicked's use of the last few rows of the Gershwin and how managing those on a week to week basis could help a moderately successful show weather the traditionally rough weeks.
The Broadway has a larger section of seats to play with in the rear mezz/behind the curtain space at 262 less seats with the curtain closed (1755 vs. 1493). I wish the Shuberts would install semi-permanent, removable or accordion style walls in the Rear Mezz that can be used or removed based on production/week of the year. So if the production can only sustain at 1400+ seats, walls up, then during the busier holiday weeks where they can sell out at 1700+ seats, walls down.. Something a little more permanent and sustainable than the curtain.
The only show I had seen at the Broadway with the curtain closed was Sister Act (which should have gone to a 1200 seat house to begin with) and even though it made the space somewhat more intimate, its still a GIANT space, even with the curtain closed, which made the show feel so small in such a cavernous room.
But also, count me in the camp who wants the original, gloriously New York, Broadway marquee restored. The kitchy Art Deco font and cold 90's construction are such a massive step down from what it replaced.