Are You Satisfied With The Back Stories

JK said at the end, we'd have all the info we needed, so there's no
need for any prequels. Do you agree?

I'd still like to see the Mauraders, Lily, and Snape at Hogwarts. Now
that we know, how much time did James and Lily spend together before
the feelings developed? Was he a jerk in her eyes since the first
train ride?
.