Sure, it would play better in a relatively intimate house, but I would think that it's going to be a large-scale revival. The original production had the largest orchestra I know of to ever be employed in a Broadway house (39 players). Jack O'Brien and Scott Rudin do not seem the types to do a small-scale revival of a show originally cast with 63 people and with a huge orchestra (big even by the Broadway standards of 1945). Obviously, this production will not have 63 people, but it seems unlikely to me that it won't have a largish cast by current standards.
I agree that the LCT production did not attract huge audiences, despite great reviews, so the commercial prospects for a new production are perhaps a bit iffy. I was not a fan of the LCT production so at the time its inability to attract sufficient audience to support more than a nine-month run did not surprise me. But my tastes are not, in general, a great predictor of popular success.