Is he essentially getting a new skin, and that new skin is now his base skin, and his previous base skin is now a "classic" skin in the vein or Trundle and Karma?
The announcement has a bit too much jargon and lore exposition for me to get the finer details. Also, does playing a Coop game count as matchmade or does it has to be pvp?
BlackSunNocturne3 votesRiot teased a skin for the Bilgewater event, and wouldn't announce who it was for.
Turns out, it was actually for 
, and the skin was staring us in the face the whole time. The "new" Skin is going to be his classic skin/splash and his current default will be the "Captain Gangplank" skin if I read it correctly.
Deep Terror Nami1 votesThat's exactly it. All you have to do is play him during this event and you'll get the old base skin VU.
YCitizenSnipsY1 votesIf I understand it correctly, if you play a pvp game as Gangplank before the deadline, this Captain Gangplank will take the place of his default. So he is essentially getting a second visual update and another new splash.
Deep Terror Nami1 votesTLDR: Bilgewater: Burning Tides sails away on August 10 at 2:00 AM PDT. You can earn the free Captain Gangplank skin if you own the champion and play a full matchmade game with him (or if you’ve already played at least one) before the event ends.
Matchmade game, not necessarily PvP. That just means customs don't work.
ModWulf Helhammer1 votesNo, his current classic skin is becoming the Captain Gankplank skin, while the new mechanical arm skin is the new base Gankplank skin
YCitizenSnipsY1 votesSo there switching the two skins?
ModWulf Helhammer2 votesYes. The new splash art skin is the new base, while the original post-rework skin is Captain Gankplank
Z Statistic1 votesok tyvm