Well I was very much suprised when they anounced capacity. I already mentioned reasons for Delle Alpi's poor attendance so I wont go back into that, but to reduce from70k to 40k. With season and away tickets sold out there are only about 12k to sell every week. An average fan today goes to a game to have a good time beside watching a game. Caffe bars, restoraunts, shoping malls it all increases the interest. Today families go to a match with intention to spend whole day or most of it... Look at the area around the stadium and compare it with the one 6 years ago. Juve did everything right, developed and are still developing area to make it functional 7 days a week. I just hope that they had in their plans possibility to expand the stadium.
Capacity of Delle Alpi was NOT 70.000 in the last couple of seasons. In fact, closer to 60k than 70k. Last season we played there, 55.000 tickets sold (give or take) was basically considered "sold out".
The reasons you mentioned earlier to explain the lower interest were valid, but you did forget the location itself. Even if the means of transportation to the site have improved, it's still very far from the actual city centre & hence time consuming to get there.
As for the area being functional 7 days a week, that is indeed the idea. And it worked more or less this season. I'm not sure this will remain the case though. The big supermarket & a few other stores/bars seem to be a succes, the rest not so much from what I saw.
Regardless, we'll just have to wait & see. Expanding right now (if at all possible) would be a retarded thing to do anyway.