As for biggest video game movie, worst case scenario I have Illumination’s Mario at Sing Numbers ($270M/$625M).
Sonic is doing Angry Birds numbers at best and AB2 is about to have a Pets 2/LM2 decrease
Mortal Kombat has to either go all the way hardcore R or try to a soft core PG-13, and either or I can’t see more than Pikachu WW. Otherwise Tomb Raider numbers are a stretch.
Looking at Pets 2, as well as past sequels, the best case scenario for Pikatwo is a small drop barring a Christmas date, in that case small increase. Either way, the best case scenario for Pikatwo is flat from the original. But I honestly wouldn’t be surprised at a Pets 2 drop.
Uncharted I can see breaking out as lack of action films in Christmas and Holland being a star but if GVK moves the best it can hope for is AssCreed numbers. Otherwise it’s one of the best chances.
Pokemon Red/Blue could do THG numbers but that’s the best case scenario.
A Smash Bros Movie can’t work for multiple reasons due to the characters.