I think UConn would be in a better position if there were more 4/5 star football talent in the state. I remember reading that adding Maryland and Rutgers has essentially doubled the number of 4/5 star recruits that live in B1G territory, if you include Virginia in those numbers (in which case the most populated region of VA is the DC suburbs with direct access to UMD).
As great as the basketball programs are at UConn, the B1G has given no indication that basketball plays any part in expansion. In terms of expansion, I think basketball is lumped in with all the Olympic sports. Now the ACC is a different story. It seems that their expansion has always been about basketball (besides money of course).
Ultimately, I think it comes down to can UConn add enough money to the B1G to not only pay for itself, but to add millions of dollars to the coffers that are split by the rest of the conference? The B1G isn't looking to break even on expansion. New teams have to add money to everyone's pocketbook. With the new P5 football payout, that becomes harder and harder, as any new conference teams would receive a share of the new P5 football payout allotted to the B1G, thus decreasing the share among the current 14 members.
I have no doubt in my mind that Delany has already ran the numbers on UConn, so whatever those numbers are should determine if UConn is ever invited or not.