Don't have a windows phone but a quick search comes up with a bunch of complaints about bluetooth connection issues after windows phone updates. I imagine if it's a newer windows phone it should be ok but something you should be able to test when you test drive. Honda's website seems pretty outdated looking up compatible phones so that doesn't help either.
A friend of mine has tested a bunch of android phones on his 2013 civic and also had weird bluetooth issues after updates to the phone.
A friend of mine has tested a bunch of android phones on his 2013 civic and also had weird bluetooth issues after updates to the phone.