In a recent interview Isaac teased another suit too, but who knows, with only one episode left, maybe he was just BSing. But yeah, I get your point. I hope that a Mr. Knight happens and that they'll include the HS, because otherwise I'll be left without an MK, as I'm not buying the already revealed figure. And with how fast they blew through all the normie-friendly MK bits and their distance from the street level stuff, plus this being marketed as a limited series, maybe this will be our only chance for an MK. He'll probably appear in some Midnight Sons bit down the line, but who knows how long that'll be?
I'm optimistic though. They made so many Loki figures and even churned out a Kate Bishop eventually. Even TaskFeMaster got made. I don't see them skipping a relatively simple figure like Mr. Knight. It'll probably go up for PO half a year later, but it'll happen. And I think they held off a sculpt to make people buy both. They thought that most would want the main suit, so they might as well drop the HS with the variant to make customers double dip.