http://www.cnn.com/2016/08/07/politics/john-kasich-donald-tr...
http://www.slate.com/blogs/the_slatest/2016/07/20/trump_repo...
You might reasonably expect that Pence was made a similar offer. If that's how it played out, you could probably expect a relatively vanilla foreign policy from Pence.
The problem is there's no guarantee that's how it would play out; Trump is narcissistic and unstable. He might actually intend to do that until Pence does something he doesn't like, and then Trump takes the reins back.
For the record I'm not a Trump fan either. I'd like to reform some stuff like patent law but Trump would burn most of it down.
I'm just saying that ~in theory~ Pence is an olive branch towards the middle. I don't think Trump will follow up on it in any way, nor will he be elected given the polls.