Oakland isn't going to fund their stadium, its not even close to viable.
It's already been said San Diego's stadium isn't going to be well received because of how much they're asking from the team (almost $500 million, and yes that includes rent because that is money out of their pockets, and $700 million if you want to include the G4 loan since you say Kroenke would have to pay $450 million in st.louis w/ g4 loan) as well as other issues
View: https://twitter.com/dkaplanSBJ/status/600306255450673153
The Riverfront stadium's only issue is the bonds - and depending on how you think the outcome will be in court really depends on how viable you think it is. I don't think it will be an issue since they lost before, and it only sounds like they're pumping their chest. Of course if the funds fail, then Kroenke is free to move and the stadium is non-viable.