My predictions of possible scenarios:
1) We go stay at Matou house, and:
a) Zouken puts the screws to Shinji.
b) The Einzbern attack, and kill Sakura. Or Shinji saves her because of Zelkova being there.
Or, 2) We go just to the funeral, and:
a) the funeral is already blown up thanks to the Einzbern attacking.
b) Einzbern attack, kill Sakura. Or Shinji saves her because of Zelkova.
c) the Einzbern attacked the manor the night before and they're already dead.