I've seen Hearn talking about this fight saying it's gonna be this big slugfest. Idk if he really believes what he says or just in full promoter mode but I don't expect a slugfest if Ennis is smart and plays to his strengths.
Stanionis looks great mostly against guys that stand in front of him but when he faces someone that's quick/athletic and can move some he looks less effective. I'm thinking about his fight with Dulorme particularly where he barely scraped by.
Ennis can definitely do that but on a higher level and with being way more dangerous with his offense than Dulorme so I expect an Ennis win, either a stoppage or a decision depending on Stanionis' durability and on how much is Ennis ok with cruising to a decision win.