1. If the game does amazingly well, sure.
2. Conservatively, art estimates are:
44 characters * 2 forms each * $100 = $8,800
79 backgrounds * $100 = $7900
35 weapons * $50 = $1,750
44 special attack splash screens * $200 = $8,800
Various small UI sprites = $2000
Totaling $29,250
For a game that will be lucky to earn $1,500