Notable, and I think different from what UA and DL have announced:
Is this a new fare discount?
In general these fares will be lower than regular Main Cabin fares in the same way that Main Cabin fares are lower than Business Class. The idea is to give customers a choice in the kind of ticket they want to purchase. It’s not a new discount, but a new set of attributes for our lowest fares.
Emphasis mine. In other words, prices will be the same, but you'll get less for them.