These things would be nice to have:

o get all distros to agree on a default set of rules

o rework rules to a match-action list, instead of a rules array

These things will change in future udev versions:

o log warning if the kernel uses CONFIG_SYSFS_DEPRECATED*=y,

which means that /sys/class/block/ does not exist

o DEVTYPE for disks is set by the kernel, they will be removed from

the default rules

o "udevadm control" commands will only accept the --<command> syntax

o symlink names to udevadm will no longer be resolved to old command names