I tend to think that will indeed be the starting lineup. I think it's unlikely it changes during the season, no matter how good any of the bench players may end up being, barring injuries.
Certainly if Blanca shows she's really good and too valuable to keep on the bench, she could see closer to starters minutes. I originally thought she was talented enough to be a starter and Geno might bring Ash off the bench again, but given that Blanca is missing the summer session due to high school classes, I don't think she will have enough "UConn experience" to displace Ash.
This team is going to need games to be 50+ minutes long to get everyone the PT they "deserve". Fortunately it's a team of unselfish "us/we first mentality" players, so I don't anticipate any chemistry issues.
BTW normally in big games Geno goes 7-8, if he even has that many quality subs. I could realistically see him going 10, provided everyone is healthy and they all improve like we hope/expect over the summer. It will be fascinating to watch how Geno manages the minutes for everyone. It will also be fun to see who surprises us, who is better than we expected, and who (if any) struggle...