Will there be anymore Gangplank skins? And if so, when?
It's just that he hasn't gotten any new ones since his rework, and even then it was just another version of his classic. Fiora got her update after Gangplank's, and she now has had two skins over him (Project and Pool Party). You may say that there are already too many Gangplank skins, but remember that there are many champions (like Annie) that continue to get skins even when they have so many. Rito, just saying, but there are tons of GP one tricks and mains (I being one of them) who really want a skin and would be willing to PAY LOTS OF MONEY IN RP for a skin on Gangplank.