Intercepted communications revealed that another particular terror threat was nurtured to maturity by al Qaeda operatives and monitored travel patterns indicate that threat became topical.
The threat is veiled by a 'big party' and 'a ship' that ends with a shooting (fireworks) and bombing incident(s).
The planning and travel patterns show similarities with the bomb attacks on planes in Egypt and Somalia. Its not clear which AQ or ISIS affiliate will claim the attacks.
Update October 13, 2018 - Al Qaeda Sets Sail - Intercepted communications in the night of October 12 and 13, 2018 referring to this threat as managed by 8 persons and monitored travel patterns, indicate that an imminent threat window opens.