The MCC is to vote on a series of changes to the Laws which would come into force in October 2010.
The major changes are as follows:
1. "Offering the light" to go
Umpires suspending play as a result of the fitness of the ground, weather or light will no longer "offer the light" to the batting side, but decide to suspend play themselves when they consider it to be "unreasonable or dangerous".
2. Mid-air boundary saves
In view of the increasing frequency of athletic saves on the boundary, the MCC has created a law to clarify when the ball is beyond the boundary. The Laws sub-committee felt "it would be wrong to allow a fielder, seeing a ball flying over his head and over the boundary, to retreat beyond the boundary and then to jump up and parry the ball back towards the field of play." The change will require the fielder's first contact with the ball is when he is grounded within the boundary or, if he is in the air, his final contact with the ground before touching the ball was inside the boundary.
3. Run-outs and dropped bats
A batsman will be not out if, having grounded some part of his foot behind the crease, he loses contact with the ground at the time the stumps are broken; for example, if his bat gets jammed in a bowler's footmark and he drops it after having entered the crease.
There are various other proposed amendments as well.
Cricinfo has produced an excellent piece here.