Cardiff's cost-cutting's already under way, hence Chopra to Ipswich for £1.5m. There'll likely be more to follow there I think.
Leicester and Forest are in a similar boat, but Leicester are even more wreckless - apparently Sven's been told to get them into the Prem no matter the cost. Thing is, whilst the new rules don't kick in for three years, they cover now, so it'll cover whatever it costs them to get promoted, and then they'll have to spend a shedload trying to stay there. I can't see how they can possibly pull that back before the 3 years is up.