Personally, I feel since Crisis & Armageddon was so popular & they had already brought Thawne back that Season 8 should have been about the Arrowverse Justice League. Armageddon should have had the negative speed force give Thawne his powers back & turned him back to Matt Lescher Thawne after Barry took them away (since that was the plan for S8 the whole time)

And in doing so, we could have had all the cancelled Arrowverse shows also give us closure on what actually happened to them post season cancellation (legends, black lightning, & Batwoman)

They had already given us Black Lightning. They could have just as easily brought back Legends to assist Barry since they got the waverider back and were confirmed to no longer be in ‘time prison’ at the end of the season cause of Nora’s Booster Gold comment…

Idk maybe I’m just grasping for straws here but Season 8 missed a lot of its shock value and decent watching material due to them constantly going down the weird force parenting thing with Barry & Iris where Barry was treating the speed force like his kid even though it was using his freaking mother’s face.