Few things.
1: Nigeria is buying three Jf17b for training purposes first. They are demanding an enhanced ground strike Thunder aircraft.
Deliveries expected to start by mid of 2017. Nigeria paid 25 Million $ for first three aircrafts. They might place order for more by end of 2017.
2: Myanmar is buying one squadron (16 aircraft) for 560 Million $. Block 3 with AESA is their demand so deliveries will start after an year when first Block 3 will role out of production line.
3: Morocco, Qatar, Egypt are interested in Block 3. Instead of placing an order they first want to witness how much Block 3 of Jf17 offer. Egypt want to replace Mig21& MirageV. They are keeping an eye on both LCA and Jf17. Qatar want to replace Alpha Jet and Mirage F1 with new aircraft. Morocco can replace Alpha Jet with Jf17 or if they find Jf17 capabale enough they might replace their upgraded fleet of Mirage F1 and F5 Freedom fighter aircrafts.
4: Sri Lanka as per now will keep eye on both LCA and Jf17. Jf17 just scored extra points by getting deployed as Maritime aircraft with anti ship missile. But this is the deal which depends less on capability of jet but more on political game. If Sri Lankan government managed to repel Indian pressure then the deal for Sri Lankan Jf17 as Maritime aircraft can revive once again.
So over all despite of failed bids from Argentina or Malaysia, Jf17 can still manage to secure credible orders from various nations through out the World. Lack of Twin seat aircraft was a big short coming which will overcome by end of this year