I'd like to go, but we'll see. Last year's was basically behind the outfield in the stands. They have a party patio in center field area, and they also use the sidewalk down the right field area. It's not actually on the field or in the stands, but on the sidewalks and there is also a building behind the center field fence that houses a cafeteria area with bathrooms and food and you can get warm there.
Had a great time last year, but I'm not even thinking about it yet (it was -22F this morning). If it warms up by then I will think about going.
That Brewhaha looks awesum! I'm planning on going to that too.