I don't think India will get overconfident. In fact Chappell had already stated, before the Lanka series was over, that India are taking Pakistan very, very seriously. That said, Pakistan shouldn't expect home-court advantage to give them too much help from another subcontinental superpower.
Obviously only time can tell what will happen, but then we should all not be at this forum discussing this, now. Also, apart from the newcomers in the Indian team, most of the batting line-up is solidly placed into international cricket. We've got Sehwag, Sachin, Dravid, and Laxman (and Ganguly) who have already been tested in international cricket and come out pretty successful. People like Yuvraj, Dhoni, Gambhir and Jaffer still have a ways to go before they can be judged.
India went to Pakistan last time with the Pakistan pace outfit at its full strength. The result was some really good cricket and some awesome records (Sehwag's 309, the high scoring Karachi game). The basic purpose of this post was to counter the claim that India's batting line-up is overhyped because they share more than 25000-odd runs between them. That said, it is always bowlers who win test matches so Pakistan could well have the advantage.