Actually the sooner a new stadium is built the sooner we could be laden with massive debt, and therefore unable to compete.
I know you and others think a shiny new stadium is the answer to all our problems, but think that shows a lack of understanding about economics in general and capital finance specifically. Even with a generous naming rights deal associated with a new build the club will find itself having to borrow at least a couple hundred million to build new. And unless the council steps in to pay for infrastructure improvements that new stadium will have a cap on its capacity meaning the extra revenue generated is not likely to be more than the borrowing costs to get the project started.
As for FFP we'll have to see whether the rules will be toothless or not, but the fact many more clubs would benefit from these rules and complete on the level with those few clubs that have owners with and willing to spend endless sums suggest UEFA may get quite a bit of support ensuring rules are applied. Think of it this way, of all the clubs in the prem, other than Chelsea and City who has an interest in constantly running in the red?