No Bear. Good heavens! We've already got two separate teams whose goal is to kill everyone!
Also, as I've said before, adding any other "wild card" elements (like the Cursed) will diminish our ability to judge how well the Lovers element works.
I'm with Celuien on lynching. The reason I don't like games that disallow double lynchings is that, in my experience, single-lynch-only games can lead to more careless voting. It effectively means that the moderator will eliminate the consequences for people who couldn't be bothered to check the vote count before voting. Oops! Caused a tie? Didn't bother to vote when you could have broken a tie? No worries, the moderator will clean it up for you.
And it goes without saying that these are prime wolf-vote hidey holes: "But I didn't know there was a tie!" Spare me.
Now, there is another problem that Celuien brings up, though: the orchestrated mass lynching. This is something that I think is against the spirit of the game--we could indeed eliminate the lovers by lynching all of one gender, but that's like catching dolpins in your tuna nets. So I think I'm in agreement with Celuien that double lynchings should be allowed, but triples and higher should not be.
Those of us who don't like to use double lynchings (and I'm one of them, btw) should campaign against them DURING THE GAME; but the rules shouldn't be set up to save the day from careless voting.
All of this is sort of a general rant, though--I am happy to play no matter what the lynch rule is. I guess I'll have to mod a game myself someday and set the rules just the way I like them.
This is going to be a very long game, though, as Lalaith says. I am a little concerned about that, but we'll just have to let it play out.