Predict the craziest lore change Swain will get

Since Riot is a fan of those, for the better or worse, let’s think about it in terms of Swain. What we know so far:

1. Swain is singular minded and not controlled by Beatrice or anything else. Confirmed by a rioter in an ask.

2. By extension this also rules out Swain as a Darkin.

3. Swain is fighting against some greater evil that can perish all Runeterra but we don’t know what that greater evil is. It could be three possibilities: Darkin, Void, or the Mist.

4. Swain has some sort of connection with LeBlanc but this was pretty obvious though I don’t blame the people for asking because of how the lores can change in a major way.

5. The greatest enemy is within... This could either mean the corruption in himself (consequences of a warlock) or the corruption of the Black Rose since Black Rose stronghold is within Noxus. Now if it’s the latter then the dynamic with Swain and LeBlanc will be very very interesting.

What is uncertain:

1. Swain as a Vastayan or having Vastayan blood. Why is it uncertain and not confirmed? I mean Rakan canonically says you were five Vastayn blood. However, a Rioter states it might not be canon and recently another one stated “do you trust rakan?” They are either playing with us or they are low key implying the line will be taken out. Still it’s not a hard debunk.

2. Swain’s relationship with Du Couteau though they do have something planned for this as confirmed in the ask. Were they friends turned enemies or enemies from the start?

3. Beatrice’s existence.

Please tell me if I missed something and my question is what do you think will be the craziest lore change Swain will get?