I doudbt that Larian tried to cue that D/N-cycle is coming here. More likely they demonstrated some of lore ties and tragedy which were spread in time. At first we have a creature passing near the statue. That must be the Bhaalspawn Slayer right after the murder of Abdel Adrian (or transformation into the beast). Then there is some bloodshed happening near the statue, it must be what happened a few days later and lead to Baal ressurection. Minsc was still standing there when all that happened. And finally we have that wild magic sourge.
No clue what that violet meteor is, though.