Dignitas is one of the oldest brands and had success in CS and DotA before.

CS is really the only esport they have serious history in. Outside of that their overall esports reach is pretty limited. They have teams in CS and HOTS. They've done very little to push their League reach aside from just being there at the beginning. For the vast majority of their time in League they've been a middling at best team resulting in being relegated once and even now - having a fairly solid team - they seem to have one of the lesser fan bases in LCS. Their ability to promote their team is really weak compared to other orgs in NA.

I still fully expect them to remain in LCS due to the history behind the Dignitas name and their serious investor cash though. It'll also be tough to boot out a team who is possibly top four currently going into next year.

I think Flyquest is far more likely to not be accepted. They've done zero outreach to other games and their promotion of their League team is abysmal. They're likely to end bottom two this split so I doubt many people will be too sad to see them gone.