Methinks the only "real change" is likely to come from relegation - or at least, it's probably the fastest route to change. Another last minute survival and things will no doubt be the same again next year: we'll all breathe a sigh of relief, the board/owner will slap themselves on the back for a job well done and being right about not panicking, and the club plods along doing the same thing with the same people, counting the days till BMD.
Maybe if we get relegated Moshiri sees the value of his asset plummet and he decides to cut his losses and sell up. Maybe BK decides to call it a day for the sake of his health. Maybe Moshiri finally sweeps the board. Who knows. A shiny new stadium will no doubt help with revenue streams, but I don't think it'll be the golden ticket or the thing that magically fixes this club once and for all, irrespective of what league we're in.