My idea of the funeral:
Brian probably faked his death. In one of the screenshots provided we see him in prison uniform. So if he escaped it'll be best for him to fake his own death.
If I'm wrong and he's really dead - he probably deserved it after all he did in Runaway 2.
Is that Gina in the trailer? It's nice that we finally get to control her, I guess.
Other that that I'll wait for more news before I judge it. Runaway 2 annoyed many people with unlikeable characters and a stupid ending. So Runaway 3 could and should be better.