It will be very interesting to see where things go if this does come back.
As for the other characters being as bad or worse than Dracula, a couple months ago I saw an interview where they brought that up and the people they were talking to, either writers or actors, I can't remember which, insisted that Dracula was the villain. I'm pretty sure after seeing the whole season, that most people would agree that wasn't the case. I've been trying to figure out if they actually felt that way, or if they were just saying that because they thought it was the way it is supposed to be.
I was pretty shocked at just how bad they ended up making Harker and Van Helsing. I was pretty shocked at what both of those characters did in the end. I kept thinking they were both going to being good guys in the end, but they pretty much went in the exact opposite direction. I was especially shocked that Harker didn't do anything to stop the demonstration once he realized what was going to happen. I kept expecting him to rush over, and fix whatever The Order guys did to it, but instead he just left. Same thing with Van Helsing. I figured he would end up letting the kids go, not turn them into Vampire and kill them with their father.
I look forward to seeing Vampire Lucy, if we do get a season 2.