Only one question remains unanswered.
Upper Deck announced today the following three products will have no redemptions for autographed cards:
2018-19 Upper Deck AHL Hockey (releases on April 3, 2019).
2018/19 Upper Deck NHL [Stealth Release] (releases on April 12, 2019).
Upper Deck CHL Hockey (releases on April 17, 2019).
They didn't mention if those products will have redemptions for other cards (patches, rookies, etc.).