Real Madrid made a profit of 45m Euros last year. They can spend what they want because they make profit. This is what Juventus must aim for.
If FFP is properly put into place, it will affect clubs whose owners put money into the club to buy players. Clubs such as Manchester City (Sheikh Mansour), Chelsea (Roman Abramovich), Inter Milan (Moratti), AC Milan (Berlusconi), Roma (??), PSG (new Qatar owner), Malaga (Sheikh Al Thani).
Will it get put into place properly? Nobody knows.