1. Will there be a Background system in play for character creation?

Yes, we have a background system in place in which the player can choose
a "history" for his character, which gives his character some bonuses as
well as some negatives. For instance, in choosing a certain background
you may get extra points in a stat or two but be restricted to only
raising another stat to a certain level. We're tailoring this background
system to our game, so while you may recognize some backgrounds from
Vampire: The Masquerade, others will be new.

2. Can we jump in vampire, and will the jump length be affected by the
strength of the character ( I can envision vampires running over the
roofs of buildings, in a cool chasing scene par example)?

Yes, your jump is affected by the strength and athletics ratings of your
character.