Ok, the testing is going pretty well.
No problems loading new games.
No crashes during play so far (after I got rid of all future transfers

- cheers Stevenhp1987).
Certain players do go back to their original clubs but its only a few - mainly people like Lampard, Rio, Rooney who are obviously set up to love their real-life clubs).
The only 'problem' I've noticed so far is that the game doesn't seem to load up quite as many players as it does normallly (unless you select Huge database).
Unsurprisingly the first couple of weeks do go pretty slow as there are thousands of transfers going through (6-10 thousand in July alone, in my testgame). The only thing I would say is that I only have one PC and one pair of hands so I haven't been able to test the game to the extreme.
Basically, the file should be available online very soon.