If you are looking for just YOY comparison, QBID does get proforma'ed.  It will come through to Other > Prior Year Summary > Federal Prior Year Summary > Tax Computation > Qualified business income deduction and appear in the YOY comparison.

If you are talking about carryover of losses from qualified businesses, I haven't checked but would presume that these would be included in the proforma.  In any case, we're still in the early days.