i can see Ferrari benefiting from the new Technical Regulations dealing with the off throttle issue. If you remember back to Silverstone when it was banned for that one race, Ferrari were not only competitive, but fatty won the race with genuine competitive times.
I can also see Caterham, Sauber, and Williams benefiting as well. Sauber were reasonably quick at the start of the year and as the other teams sorted out the off throttle, they (Sauber) slowly slipped backwards. With Williams, well, its one less area they can go wrong.
I haven't seen any change in the Red Flag rule that was supposed to be under review,surely changing to Wets can be the only permitted act on the starting grid.
Pretty sure that was dealt with after Monaco.