Yes, sort of. But the sorting represents pre-merger equipment and not necessarily pre-merger pilots.

Except for the temporary 787/747 fences the ISL is complete and pilots are free to bid whatever base/equipment/seat their seniority can hold on the combined list. There are pilots from both pre-merger airlines currently flying the 756 and 76T. Naturally there are more ex-CAL pilots on the 756 and pre-merger UAL pilots on the 76T as that was the starting point at the time of the merger.

Once the cockpits are harmonized, if ever, the 756 and 76T fleets will become one.