The problem with using today's practise sessions as a guide to performance, is that today's sessions were held in either rain or in very damp conditions.
Providing the race isn't held in similar conditions, I think we can assume that today's times count for little.
It would be logical to expect Ferrari to be moving forward now, because they had their big upgrade a few races ago, so the negative effects of that will have worn off, but we shall just have to wait and see what happens on Saturday/Sunday.
Does anybody know if/when RedBull have a major upgrade, up coming?