I have trouble thinking Toho is going to sign anything. The only reason Legendary got a shot is because at the time, Toho had stopped making Godzilla movies. Now that there's a clear market for them, they're going to take the license back.So I actually read last night that the reason there aren’t any more hints is because the deal with TOHO expired in 2020, and hadn’t yet been renewed or reworked...so as it stands, they can’t actually have another Godzilla film.
I’m not sure if that means anything for Kong, though.
And I think that's a good thing.