Heya Milli!
It's so good to see you Bud!  

I like the idea of open endings or ambiguous endings in general.  I mean, hey, the open-ended ending of BBM is clearly a masterpiece (obviously a totally different league or caliber from the L Word... but still, it's a good example of an ambiguous ending).
However, I agree with you that the L Word ending didn't really necessarily do justice to all the characters and/ or storylines.  It was a lot to try to wrap up, definitely.  And, yes!  Now that you mention it, I remember the talk about The Farm.  I would love to see a whole show focused on Alice.  Alice is such a great character!  I don't know if I'd be so interested in a whole show focused on Jenny or her death.
Yeah, I'll miss the L Word simply for the fact that it focused on lesbian storylines... and it was often lots of fun.  But, as I said in my post here from a while back, I still think the show had run its course, so I feel like it was a good time for it to come to an end.