Maybe, but I believe Tyler mentioned on the first stream that they would only be showing one new character, so "don't expect like two or three reveals on these streams" or something like that. Also, last week they said this stream would show Kano but they didn't mention anything about another character.
It could have been apart of the plan, but I'm getting the feeling that NRS is trying to listen to feedback.
If they did that, I think my kneejerk reaction would be "WTF NRS?", but actually it would be kinda hilarious in a way.