User blog comment:Eobard95/Season 6 Trailer - Where's the bow?/@comment-27673963-20170725103729/@comment-4786757-20170730000734

Well, we already knew Rene, Dinah and Laurel survived because they were upgraded to main cast. They have also mentioned  Diggle's arc for season 6, so that means he's fine. Pretty sure the only one that will die is Samantha and possibly Evelynn. To think they'd kill off Diggle or Felicity (and not be the final season) is kind of illogical. They are the original Team Arrow.


 * http://comicbook.com/dc/2017/06/08/arrow-season-6-helix-felicity-smoak/


 * http://screenrant.com/arrow-helix-involvement-felicity-hacker-season-6/

I know she's not liked by some of the fandom as of late... but I very much doubt they'd kill her off.