Awww. Yeah, that'll be good for Misa, to be able to relate to someone for a good, wholesome reason. And, yes, Misa's just sweet; I'm anticipating more people starting to like having her around.
It would be a unique twist! We'll have to see what happens, since L is unpredictable. XD But Misa is just as weirdly possessive as he is, even if she hates his guts, so I'm sensing goofy misunderstandings, at least. ^_^