Assassin Class Update - The Big Six

So, judging by the Rioter posts made a while back over at the Assassin Class Update thread, I've gauged which of the six Champions under the Assassin subclass are most likely to be part of the group to receive major changes:

Katarina Rengar Talon Fizz (?) LeBlanc (?) Kassadin (?)

---

The following three Assassins, on the other hand, are unlikely to receive major changes due to already being** unique and in a good place**:

Kha'Zix Zed Ekko (?)

---

And finally, these are the batch of Assassins that will almost certainly not be part of the "Big Six," as they require work far greater than a roster project has to offer them (but will likely be receiving small, individual changes/tuning/fixes like the group above to tide them over in the mean time):

Akali Evelynn Shaco

---

(?) = The Champions marked by a "(?)" are still largely unconfirmed and interchangeable, as any official posts made by Riot in regards to them (or lack thereof, in Kassadin's case) do not give a strong indication of whether they will be part of the Big Six. This means Ekko may very well be a part of the group to receive major changes, taking either Fizz's, LeBlanc's, or Kassadin's place (and vice versa).

---

EDIT/UPDATE: Something I missed when typing up this post is that it seems like Riot's plans are actually to make major changes to a smaller pool of Assassins this time around (3-5 Champs at most):

{quoted} The biggest difference in the Assassin update is that there will be fewer updates in order to ensure each of them is a significant change that both solve their gameplay issues and push their unique identities. Quality over quantity.

Still, the set of Champions that are most likely to be receiving big changes for this roster update remain the same (Katarina, Rengar, and Talon); we will have to wait and see whether Fizz, LeBlanc, Kassadin, and/or Ekko will be receiving major changes too, as they are just big "maybes" at this point.