This is accurate from the goalnation article:
“This is an opportunity outside the DA for our ten clubs to work together creating quality competition and local showcase opportunities for our players. We don’t see this as an extension of anything, but rather as an opportunity for our second teams to have their own familiar pathway to reaching their club soccer goals,” says Mauricio Ingrassia, "
Some of the other things mentioned are questionable
"this new girls-only league will focus on creating a pathway for players to progress, develop and be identified by creating a seamless bridge between the DA and Academy II"
Separate leagues with separate registration systems, rules, subs, rosters, play dates, etc are not seamless and there is no bridge, they are separate islands. This proposed league is no different than another other league and DA as described.
"Selected youth players will be designated as Development Players for their club’s DA teams"
Pre designation is not permitted in DA, after Oct some clubs can add DP's but those can be any players that plays on any non-academy team within a club.
"
This will enable a smooth transition for players to become DP’s with the DA and allow clubs to align the principles guiding the DA (US Soccer Federation) with this player pool inside each club"
Unless ussda changes the rules for DP's there is no difference or smooth transition, DP's are mainly replacement/alternate when a FT player is injured, sick, away, etc. A DP may play in a maximum of six (6) DA games during the Academy season.
The league is comprised strictly of DA clubs, and will sanctioned under US Youth Soccer/ Cal South. This dual sanctioning allows teams the freedom to play within CRL, US National League and National State Cup, should they choose to do so in addition to the DP League.
http://dpleague.org/about/
So they don't actually have sanctioning yet? Why would Cal South care about a 10 team league in the first place?