Proposed NFL rule changes includes moving back extra point

Each offseason there are a slew of proposed rule changes at the NFL owner's meeting that teams vote on. New rules can be presented by either teams or the NFL competition committee themselves.

Below are the proposed rule changes being presented this offseason:

Move kickoffs to 40-yard line (proposed by Redskins)
Make personal foul penalties reviewable (Redskins)
No overtime in preseason games (Redskins)
Extend goalposts five feet higher (Patriots)
Move PAT line of scrimmage to 25-yard line (Patriots)
Add cameras to goal lines to assist with instant replay (Patriots)
Allow any referee's decision to be reviewable (Patriots)
Include blocks from the side in "roll-up" block personal foul penalties (proposed by Committee)
Allow replay communications between officials to include league representative at league office (Committee)
Make the recovery of a loose ball a reviewable play and reorganize the replay section of the rules (Committee)
Allow clock to run when quarterback is sacked at all times (Committee)
Remove one-yard interference zone and enforce pass interference anywhere beyond line of scrimmage (Committee)
Simplify penalty yardage enforcement on certain plays including change of possession (Committee)

What do you think of these changes? Which ones would you make?