There will never be a "Super Smash Bros Brawl 2", however it is possible that in the future Nintendo may make a fourth game in the series.
SSB Games:
Super Smash Bros (N64)
Super Smash Bros Melee (GCN)
Super Smash Bros Brawl (Wii)
The next game will be Super Smash Bros Dojo and I don't know what game system it will be for since more will be made (but I'm guessing the new Xbox)
Super Smash Bros., Super Smash Bros. Melee, Super Smash Bros. Brawl, Super Smash Bros. for Nintendo 3DS/ Super Smash Bros. for Wii U, Super Smash Bros. Ultimate.
You can only install Super Smash Bros. Brawl on your Wii with a Super Smash Bros. Brawl disc.
The "sequel" to Super Smash Bros. Brawl, in a way, is Super Smash Bros. for Nintendo 3DS/Super Smash Bros. for Wii U.
theres a rumor that there will be and is called super smash bros war
You can not get Blaze in Super Smash Bros. Brawl.
Super Smash Bros. Brawl happened in 2008.
No, in fact Shadow isn't even in Super Smash Bros. Brawl. He is from the Sonic games. Sonic however, isn't from Super Smash Bros. Brawl but Sonic is in Super Smash Bros. Brawl.
Super Smash Bros., Super Smash Bros. Melee, Super Smash Bros. Brawl, Super Smash Bros. for Nintendo 3DS/Super Smash Bros. for Wii U, and Super Smash Bros. Ultimate.
Sorry but no, Birdo is not in Super Smash Bros. Brawl.
Sadly, you can not be Rosilina in super smash bros brawl
No, there is no Super Smash Bros. Brawl DS.
Super Smash Bros. Brawl happened in 2008.