I'll ask again: how do you think IS will go about incorporating the cast of 7 into a hypothetical remake of 6?
>Lowen, Rebecca, Harken, and Isadora show up in the early chapters at minimum
>Vaida and Heath show up as enemy units on certain maps as Bern soldiers
>Pent and Louise give exposition in Etruria
>Dorcas fathers Dorothy with Natalie
>Oswin, maybe Matthew as well, perish with Hector
>Rath is confirmed to have died during Bern's invasion of Sacae Lyn as well but IS will never actually commit to this
Just a few ideas off the top of my head.