According to Air Commodore Khalid Mahmood during the 2015 Paris Air Show, the idea of a dedicated chin hardpoint for targeting pods was being studied in Kamra, but alongside the feature set of the Block-III (e.g. AESA radar). But they were also studying of possibly having those chin stations on the Block-II as well. That said, I'd weigh more on the side of seeing the ASELPOD under the wings on Block-II, but chin by Block-III.
Interesting note: Aselsan also has other pods - e.g. TacSAR and photo-reconnaissance pods - under development. Could make for an interesting suite for the JF-17 in the long-term.