What now is a good question. And Ignis doesn't know an answer to it. His head feels numb from pain and sadness and thinking about any kind of future is impossible right now. It is as if his own life has finished with Noctis dying on the throne. The future is out there somewhere, buried under the debris of the pain and sorrow.

"Now we... honor our King's last wish." Wish for them to live. Ignis' voice is trembling as he speaks, showing that even he doesn't believe completely in the words he's uttering. But he knows that on some rational level and from other people's perspective he could be right.

"It's- it's going to be hard. Impossible even. For months, years." Ignis' fingers bury deeper into Prompto's clothes. The thought of 'moving on' without Noctis tearing him up. "...but we'll do it. Alright?"