No. There are 6 leader personas, which you call reskins. Keep in mind they will have new leader abilities. Additionally, there are 13 new leaders who have whole new models and leader abilities. That's 19 new leader abilities, 13 new leaders, and 6 new skins.
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They were in the text on the Great Negotiators preview blog from about 9 hours ago. Lincoln likes same government. Nzinga hates people who expand beyond their home continent. Saladin hates civs who attack civs that share his religion.