Assuming that Bethesda truly had something planned this far out surely it would only be known to those higher up the food chain. And as far as I'm aware it's pretty damn rare for leaks to come from directors or writers or anyone else what would be in the planning stages. Usually if it's someone on the inside it's probably a programmer, fact is they don't get payed so much, thus don't have the same drive or loyalty to stick with the company. That or it's someone contracted out, I believe voice actors would tend to be a good example of that. But it's pretty unlikely that either are on the project at this point considering they have bigger projects that are being worked on, and it's not coming out till 2026 at the earliest. Assuming they have something being worked on it's probably still in the planning stages, where only key like directors, writers, and executives know what's going on, none of which really tend to leak shit.
Sounds very sus to me.