Nah, I think some folks are assuming a lot of bad stuff that does not exist.
We know (as the club already told us) things were very grim 16/17. We also know as the club have just told us, after all the cost cutting we are now profitable. Unless we think the club are now lying (although why they would is beyond me) we are in good shape.
If we go up then we can probably keep this type of squad maybe an upgrade. if we don't then yeah we will have to let all the higher payers go who are out of contract and sign up younger championship players instead.
We are going to be fine though. We have a good owner with deep pockets we just need to navigate FFP, which is a challenge but a lot easier for a club of our size.