I personally wouldn't have any major concerns about climbing in Pakistan this summer. As already said, the main problems are away from the climbing areas. It may be prudent to fly although sometimes flights to Gilgit get cancelled in poor visibility (minor problem of Nanga Parbat being close to the flight route). Skardu flights are rarely cancelled. You should be able book online at PIA's website else find a PIA shop. I personally wouldn't spend longer than you have to in Islamabad, Rawalpindi, etc due to recent events. There are regular buses heading north from Islamabad. I'd have a back-up plan to Pakistan in case things get worse. Eg India.
Further to the KKH never being totally safe, in 2005 buses and other vehicles had to travel through the Indus Kohistan stretch in armed convoy due to tribal tensions in the area. This led to the Islamabad-Gilgit trip taking around 20 hours due to long dalays in the formation of the convoys. Maybe they'll be doing the same this summer if there is a security risk on the KKH's lower stretches. The KKH is the only road to China with whom a large amount of trade is done. Long-term, the Babusar Pass is being upgraded to offer a shortcut to the KKH through Besham, etc.
Regards Workman Peak, I've not personally seen it at close quarters although have visited Hispar and and seen it from high up at a distance. I suspect, like a lot of the easier stuff in the Karakoram, that it might be more like an AD.
Workman Peak is the peak directly left of Hispar Pass in this photo.
Peak 6243 (right) with Snow Lake in the distance
You'll need to look at the photo in full resolution to see the peak properly.