You are right that for Inter Milan this is huge chance to not only get three points but also to regain confidence after their early season loss. Win against rival like Juventus would be massive mental boost. On other hand you wisely pointed out main question about Juventus. And trheir winning streak and home fans are advantages but match against team of Inter quality is completely different test. This game is true test of their form against Inter historical quality and experience in big games. So as you said match is very hard to predict. It will be battle of momentum versus motivation and that makes these derbies so exciting to watch.