Total shake up of transfers incoming. Player values dropping, clubs trying to get big earners off the books - a good test for agents and players.
Does a player take an offer now on reduced terms, or wait it out to get the money they are after?
The only certainty is that those clubs already with a decent trading/recruitment model will be in pole position - failure to already have this in place will be a nightmare.
The interesting part will be the streamlining of academies in the premiership...I would imagine a load of academy players will become available that otherwise would have been unobtainable.