Capcom and Sony have announced that all DLC characters for Street Fighter V will be completely unlockable by simply playing the game. This is a big change from previous instalments in the Street Fighter franchise where DLC characters could only be purchased with real money. Players who prefer to unlock characters with real money will still have that option. Paying for DLC characters with real money was confirmed to be the quicker way to unlock characters.
Capcom have not confirmed pricing for characters, but they did confirm that they would be using the upcoming Beta tests on July 23rd and in 2016 to balance the in-game economy. Make sure you get involved with the betas if you want to have an impact on future DLC pricing for Street Fighter V!