I doubt it, especially because I think they are really tied to what the Royals do and make their announcement. I get your point and use the positive press to your advantage but I'm not sure they can.
IMO, they are looking at creating a new stadium and entire "Chiefs" entertainment district brand both Chiefs & NFL. They will be the sole owner of the TSC once the Royals announce they are moving. I expect them to have big plans for the land at the TSC, including developing what is basically hills & grass not and turning it into a major district. It will still be on an island of sorts, but could spur some other development around it but I'm not sure it will or they care. It will be an "oasis" of sorts right off 70 as you are heading out of or into downtown.
The old Adams Mark and things at that corner may develop better but not much else as it will all be contained within the TSC. People talk about "Jerry World" and that is basically the stadium, albeit the area is also the home to the Rangers and Six Flags. Not suggesting a theme park out there but something that is really "Hunt World" I can see, and maybe even they agree to lay the ground work for some sort of rail/mass transit to access the "park" so those who do not want to bring their own tailgate game day can experience it in other ways with a Game Day Village or something like that.
But I suspect the Chiefs are drawing up plans an such, keeping it very close to the vest and will announce something as some as the Royals get off their asses and do something.