My prediction:
The 49ers waste all of their timeouts on offense trying to get plays in during the first half. They end up taking two delay of game penalties anyway, as well as one false start, in the first half. To add insult to injury, with 3 minutes left in the first half, Doug Baldwin makes a ridiculous shoe string catch for 40+ yards, and Jim Harbaugh is convinced he pulled it off the turf (as is about 30% of the 12th Men) but cannot challenge as he has no timeouts.
Jim throws a tantrum, pushes a referee, and is flagged fifteen yards for unsportsmanlike conduct, and is warned that if there's another incident, he'll be ejected.
The 15 yards put us at 1st and goal, Beastmode blasts in for the TD, and the 49ers pack it in at half time, just like last time.
Seahawks 42, 49ers 13. History repeats itself.