Felicity risks her life trying to put Diaz in jail. She suffers an accident and is rushed to the hospital where we see her in 6x23. (Yes I know I was anti-hospital theory for Felicity, but something @oliverfel4 said convinced me and I wrote this post)
Because of her past paralysis and the delicate chip situation and the added pressure her spine might suffer with pregnancy, Doctor Schwartz (nice ode to Beth- because she must be the Arrow script doctor) orders Felicity to bed-rest for the rest of her term.
Even if Oliver wants her to help as Overwatch on the team, she absolutely can’t! Leaving Oliver alone in the bunker in the season 6 finale of Arrow. It explains why Oliver asks for Roy’s help and Colton Haynes coming back for season 7. Nice play on the word “Alone” by Stephen and David on HVFF Chicago.
I read @tinaday3w last chapter of “A Soul Lost at Sea”. She had the solution all along. In the old days they used to call pregnancy “confinement”, because women used to literally be confined to their homes until their babies were delivered.
We call prison now a days “confinement”. I think Felicity will refer to her confinement to pregnancy bed-rest as if it feels like a “life-sentence” - one that she will willingly serve to have their baby! Meanhwile Diaz and BS will get a life sentence in prison.
And that is your big bang ladies and gentlemen and the thing that can’t be “undone”!