>>112653708It hasn't really happened yet though. Again that's just a possible future that we saw, but doesn't necessarily means it will happen, because we haven't gotten there yet. Hell we don't even know how it happens and the run hasn't explained how it plays out, so why would you think it happened?
The probe sent from Multiverse-9 received by The Leader belongs to a place that doesn't exist yet, and as such, it's susceptible to change from the prime universe 616, since the probe itself is a new element introduced in it that makes that possible outcome less likely to take place once the contingencies are put in place. As of now, The Leader is aware of The One Below All's influence and will want to know how Hulk became infected with him. The Devil Hulk is NOT TOBA, as he was created to protect Bruce, so how come this infection happened? That's a question they'll have to answer.
But as for the future, since it hasn't happened and we KNOW for certain that the first scenario mentioned here
>>112653672 takes place (and in fact we only heard of it before, and we got to witness it in HOTMU), there necessarily has to be a divergent timeline, and a severed scenario that might be the third if they manage to stop TOBA.
In Marvel there isn't such thing as a fixed timeline, things constantly shift and change to adapt, the so-called "retcons" are in fact the timeline adjusting itself, past, present and future, and are never set in stone. That's how it works.
