The simple answer is NO. It won't happen as here is the West against this, due to previous nuclear related reputation, and then there is your arch rival India's lobby. Having this said, the situation changes when Pakistan's economy grows 30-40% in the next few years.
When the current projects start to go live by 2017, the current electric production issue will have resolved by 80%, with significant foreign investments flowing through and the trade route becoming active, Pakistan's economy, from Gawader all the way to China, will start to present a great opportunity for international investors. That is when Pakistan would be able to get electric power plants from other countries. However, due to its size 6 times smaller than India, these plants won't come in as a "deal" like the world saw with India. Just because the Indian population and its size is enormous. Pakistan has less people and needs compared to India so the current projects can overcome majority of the shortfall to a point where the industries can start production again. Future demands will be met by future purchases of few nuclear plants IMO.
Pakistan should really be building about 2 dozen mid-large sized dams on Indus alone. The water being wasted, can be saved, can provide serious advantage in increasing agriculture and farming business, as well as turning the deserts into agriculture land by re-routing the water through these dams. The biggest advantage would be cheaper, safer electric production and avoiding floods, plus millions of new jobs that these projects will create. You can then supplement additional needs with nuclear energy production, but you won't need too many plants for that.