The next set of reveals should be at Gamescon in Cologne on August 19th. Rutter also likes to keep the community up to date via his Twitter account.
As for the Practice mode and allowing it online I can see this as a huge exploit if allowed online however that's for Rutter and the other producers to decide. I personally would like to see it available for offline only and give it a go next year online.
What I can say is there has been a lot of work done in all areas of the game since Rutter's producer tour in June. Also as mentioned the leaked footage was of gameplay 60 to 65% complete. Our gameplay team is putting in long hours to hammer out these last couple of issues which will make FIFA 10 the best ever and give you that 'Jump out of the seat moment' that makes the game great.