Another hope for getting an HT Quorra is that there are way more signs pointing to Tron 3 happening than not. Besides Bruce Boxleitner and Cindy Morgan saying its a go, the writers of Tron: Legacy who are set to produce a sequel have discussed a sequel in the last months. The talk is that director Joseph Kosinski will pick up the reins again after he finishes Oblivion. Granted if Tron: Uprising is not received well they could scrap everything.
So, I think a HT Quorra, possibly a Tron 3 version could be made, but we are maybe two to three years away. This is all a big if of course. Tron 3 product could be more prompt because what HT learned with the light cycle.