That is NEVER happening. Anyone who actually thinks taxpayer would ever allow UConn to even consider building a new 35k+ capacity football stadium in Storrs with public funds has absolutely zero common sense. And no one at CCSU has any interest in using a 40K-seat stadium in East Hartford for anything - even if it was a free "gift" for a single game. The State can't even get a MLS team here to pay to use that stadium. Hartford/Connecticut has died as a professional sports market. That is UConn's home for better or worse.
The State/Hartford/UConn has a massive problem with the Civic Center. That is the #1 priority and there are few good options and little public funding available. I would worry about the home for the flagship athletic teams (M/W Basketball), instead of a football program that might not exist in 20 years.
The Rent was built on free, flat land and still cost $70M more than 2 decades ago. It would cost 4x that today. UConn is playing there as long as they still have a team. Yes, the State will dump millions of dollars in "maintenance and upgrades" but it still far cheaper than building new on campus.
If anyone at UConn wants to help CCSU (which of course they do not want to do in any way, shape or form) - just send us a State appropriation for an extra $30M per year and we'll use it for academics and athletic in New Britain. We need $$$ to build dorms, hire faculty, enhance athletics, etc. - we do not need a football stadium in East Hartford