Safezones should no longer protect people who are engaged in pvp outside of the boundaries and attempt to escape by running into the zone, unless the victim is attacked by a much higher level. [maybe even gving victims of lowbie ganking a speed boost that's cancelled when the lowbie mounts up or attacks, whether accidentally or not. and if the victim survives the ganking attempt, they heal back a % of the damage done over the course of 20 to 30 seconds. less if the ganker is closer to the level of the victim and cancelled if a potion is used].

Also for someone in a guild at war with another, they can be attacked by an opposing guild in any safezone except for major cities.

or maybe give people who try to escape into safezones a stacking debuff that increases damage received by the specific attacker by a % that stacks up by every 5 or 10 seconds. if the stack reaches certain amounts, different negative effects occur. after 2 stacks are received, the player's mounted speed is decreased while in the safezone. by maybe 3 or 5 stacks, teleport scrolls and logout timers are increased by a hefty amount. when the full amount is reached, the player can be attacked by the aggressor.

also give people brief immunity or reduced recieved damage that's cancelled after a time and when the person moves or attacks after landing from a flight path [but during that time they can't use the pegasus to fly somewhere else or change channels]. this gives people at least some time to either react accordingly or to make peace with the zerg that's about to mow them down!

idk if anything like this is currently implemented as i never made it past level 19 in open beta

no

No, see other threads on this.

Just make it so there is no safe zone if your red. With the exception of major towns. I think that is simple enough to make everyone happy. Gankers can be hunted easier and lowbies still have a safe place to hide as long as they arent instigating.