Botw was announced 2013 and released 2017. Not close to 7 years.
Metroid Prime 4 announced in 2017. Not 7 years or even close to that yet. Also this has an entirety different studio working on it so it's different.
Bayo 3 announced December 2017, also not close to 7 years or close to it.
Unless those last two games come out in 2024/5 they won't take nearly as long as TLG did.
I meant Breath of the Wild 2 actually, but it was a joke regardless.
Although ... At the same time ... You know that the game was probably not being worked on during that entire time, right? Like, in a similar way to where we can discount Metroid Prime 4 because it had to restart development midway through the original title, I think there's some leeway for The Last Guardian which was probably on hiatus for a good 2 years at least (in total, not saying those were 2 years in a row they took off), it wasn't even finished on PS3 as well so imagine how much work it took remaking parts of a PS3 game's code for the PS4.
Also I don't know ... I think Bayonetta 3 will come out this year (or at least hope so), and Metroid Prime 4 will probably be late 2022-2023 at the earliest. For Metroid Prime 4, that's 5.5-6.5 years after it's announcement. Doesn't matter that development restarted, it was announced in 2017, and your criteria was announcements. I'd say that's pretty close to TLG, to be honest.