If I understand this correctly it's not different from the setup with the Ricoh - only different owners.
A new company is formed and financed by new investors. They will buy the land, build the stadium and other facilities. Maybe a hotel, housing, a supermarket ... This company will most likely NOT be a company in the SBS&L family.
Within the SBS&L family a new company will be running the operation of the stadium. A company like ACL, but owned by the club.
The club will pay a rent (just like Wasps are paying rent to ACL) but in addition all revenue from the stadium 365days/yr will count in the FFP/SCMP calculation.
So the club will not be laden with more debt - that will sit in the prop-co - the company outside SBS&L.
Yes, the club will pay rent - which is fair as the club actually use the facilities. How much nobody knows and probably won't know until shortly before we move in.
Early in 2013 when it was clear the negotiations had broken down with ACL over part ownership of the Ricoh, I was convinced a new stadium would be build. As time just went by and no signs of plans were laid open and no site bought I started to doubt, even though I always believed we had to own our stadium if we should ever have a chance of returning to top flight football.
In addition I was fooled by the previous accounts when all the long term debt was suddenly reclassified as short term debt. To me that was a sign sisu could be preparing an exit.
But now? Now I must admit that I am back to believing this will happen.