Highly doubtful. Ya it will possibly escalate but both nations are big enough and well armed enough to battle it out between themselves without other countries getting involved.
What kind of reasoning that is? If countries are big enough, that won't lead to world war? I would understand the argument that India or Pakistand aren't part of any military alliance,
but the fact that they are "well armed enough", might end up being the problem. Both india and Pakistan have nuclear missiles.
How much you think it will escalate before it escalates too much for the rest of us. I am really hoping it won't but today crazy wannabe dictators get to be presidents as well.