[skinsnut]

I would think any games in august would have to be night games to avoid the heat...so you'd probably see Thursday night football for a couple weeks...
The problem is...they want revenue...and the best way to do that is with a thursday sun, monday night and 2 sunday day games.
I just wouldn't want to get screwed with 100 degree games or having a Monday night game followed by a Thurs night game.

I could see 7 games sat night, 8 games sun night and 1 monday night...but thats only 3 game slots vs the normal 4 (3 sun, 1 mon) unless they can schedule a sunday day game up north or in domes or something.

18 weeks would be grueling on RB's..
typically star RB's dont really play much in preseason, nor do star WR's QB's.
More depth would certainly be needed there.

The position that would be hurt the most is QB.
Developing a rookie QB requires a ton of reps and with 4 qbs on the roster, they have to share time...if they do this I could see a lot more old QB's on rosters for a long time...and if they are on the roster, rookies will never get in during the regular season unless there are 2 injuries (rare). I really don't think this will hurt the linemen...they play a lot in preseason.
Special teams will suck though...especially the first 2 games...I see a ton of records being broken on returns because those teams will be filled with rookies that have never played teams...and those teams change a ton year by year.