There will be a fourth game but it most likely will not be called super smash brothers brawl 2.
There is no Super Smash Bros Brawl 2.
IN your sentence, is the word "to" supposed to be 2?
500 or so.
No, there is no Super Smash Bros Brawl 2.
In a way, Super Smash Bros. 2 can be Super Smash Bros. for Nintendo 3DS/Super Smash Bros. for Wii U.
Nobody knows. Nintendo might not even bother to make another Super Smash Bros game. Or, they can make a Super Smash Bros Brawl 2, and have every charachter ever created. Nobody knows. That is the future.
There will probably be another game like it, but it will be titled something else.
Super smash bros brawl!
maybe but it won't be called Super smash bros brawl 2. They called the first one super smash bros and the second one was super smash bros melee. They will surely find another word than brawl.
At this point in time, it is unknown if Nintendo will make a Super Smash Bros. Brawl 2.
If there even is a new Super Smash Bros. game it will not be called Super Smash Bros. Brawl 2. Other Super Smash Bros. games have different titles like Super Smash Bros. Melee, but that came out 7 years before Brawl and 3 before the original so the new game might be in a while..