Well I guess they proved me wrong.
India is claiming they didn't go after Pakistan military targets, only terrorist targets.
Pakistan is going to respond but if they really destroy military targets, then India will have to respond.
This has the potential to escalate but I don't think it will. [One of them will back down; my guess is it will be India because of the issues their Air Force faces]
This will be just air and missile strike show.
But if does escalate and reaches ground troops invasion, eventually the losing side will use nukes--very unlikely but still a small possibility.