Update 9/29/21: Chase insider EosHuffer says that there is nothing to this rumor.
There is an unverified rumor that Chase will announce a premium Hyatt credit card in the coming weeks. The source is FT user WScottsdaleInsider who spoke to a Chase supervisor. As far as rumors go this one isn’t super reliable as I’d think we would have heard from other Chase insiders regarding such a card. We’ve also seen rumors regarding a premium Chase Hyatt card before (seems we get such a rumor every year since 2017). I would think launching a premium Chase card would make sense, but it’s possible Chase doesn’t want to cannibalize it’s own market share by competing with the Chase Sapphire Reserve card.