Gangplank keeps losing his utility

Since season 1, GP has been an average champ with decent utility. He didn't have insane damage output or crazy cc, but he had grievous wounds in his auto and he had an ability that could deny cs/experience. After the rework, his kit made more sense. His ult became smaller but it wasn't nearly as random, his passive allowed him to slow, he could move faster and hit harder to become a hit and runner. While he isn't the best laner, he can do a good job at it and he can be a good support as well because of the utility his E and his passive bring to the team.

His current kit allows him to hit and run, eventually catching up to his opponent and slowing them further upon reaching them. The new reworked GP has taken away his utility and replaced it with...? mind games? The new kit brings problems to the current GP so I have a few ideas on how to improve a nerf rework.

Passive. The problem with his passive is that GP will most likely be laning. That means he has to get near the enemy to proc it. The passive will most likely be consumed during CSing. Ways to make it better:

• Make it so it damages one enemy champ once every few seconds, like Nautilus
• Make it so that minions don't consume the passive

Q. Nothing has changed, except that it no longer slows because he no longer has a passive.

• Add a small slow effect to it kinda like trundle, this way GP can actually catch up to his target.
• Make it have no cost if he blows up his own barrel, it already sucks to use 2 skills for 1 amount of damage.

W. Skill has been buffed, it heals for a lot more. Still does nothing vs a lot of popular champs that have knockups.

• Make it so he doesn't have to cast and can continue to move while eating oranges.
• Or give him knockup immunity for 2 secs after eating oranges.

E. All the utility has been removed from this skill. GP no longer has increased movement speed or attack damage, which pretty much forces GP to either have someone else do the cc for him or build mallet/cleaver just to catch up. Will a teleporting GP ever be able to help his team with a barrel? Will GP be forced to build damage just to be decent with his barrels? In my opinion, this skill brings small amounts of synergy with his passive and team play so here are a few ideas on where to improve.

• Explosion gives teammates a move speed buff when moving towards the explosion, kinda like soraka.
• or Explosion actually shreds armor rather than do armor piercing damage. *or Explosion helps GP move toward enemy champs hit by explosion. *Explosion procs on hit effects to all targets if you used Q to explode it

R. Ult seems better, no need to change the ult.

TLDR; gangplank's new kit makes no sense and makes it harder for him than it already was, also kills support gangplank