Compare the order of characters in page 1 and 3 of Group Records in Brawl. Following the numbers, the column on the left is from page 1 and the right column is from page 3. Note the differences...
1.
![Mario :mario2: :mario2:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
8.
![Pikachu :pikachu2: :pikachu2:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
15.
![Ice Climbers :popo: :popo:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
22.
![Pit :pit: :pit:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
29.
![Ike :ike: :ike:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
2.
![Donkey Kong :dk2: :dk2:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
9.
![Luigi :luigi2: :luigi2:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
16.
![Marth :marth: :marth:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
23.
![Olimar :olimar: :olimar:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
30.
![R.O.B. :rob: :rob:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
3.
![Link :link2: :link2:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
10.
![Captain Falcon :falcon: :falcon:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
17.
![Mr. Game & Watch :gw: :gw:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
24.
![Lucas :lucas: :lucas:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
31.
![Jigglypuff :jigglypuff: :jigglypuff:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
4.
![Samus :samus2: :samus2:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
11.
![Ness :ness2: :ness2:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
18.
![Falco :falco: :falco:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
25.
![Diddy Kong :diddy: :diddy:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
32.
![Toon Link :toonlink: :toonlink:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
5.
![Yoshi :yoshi2: :yoshi2:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
12.
![Bowser :bowser2: :bowser2:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
19.
![Ganondorf :ganondorf: :ganondorf:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
26.
![Pokémon Trainer :pt: :pt:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
33.
![Wolf :wolf: :wolf:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
6.
![Kirby :kirby2: :kirby2:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
13.
![Peach :peach: :peach:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
20.
![Wario :wario: :wario:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
27.
![Dedede :dedede: :dedede:](/styles/default/xenforo/smilies/dedede.png)
34.
![Snake :snake: :snake:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
7.
![Fox :fox: :fox:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
14.
![Zelda :zelda: :zelda:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
21.
![Meta Knight :metaknight: :metaknight:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
28.
![Lucario :lucario: :lucario:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
35.
Characters from 1 to 15 are ordered accordingly to SSB and Melee that it can easily be divided into two parts. 1-11 are SSB and 12-15 are Melee and they are ordered the same way in both page 1 and 3 of Group Records in Brawl.
Beyond this point, it starts to get a little bit mixed but it can pretty much be divided into four parts: SSB, Melee, Brawl, and late additions. On page 1, SSB group is 1-11, Melee group is 12-17, Brawl group is 18-29, and the late additions are 30-35. On page 3, SSB group is 1-11, Melee group is 12-19, Brawl group is 20-30, and the late additions are 31-35.
It seems to me that page 1 is the before and page 3 is the after. It seems like it because Marth and Mr. Game & Watch were moved from the late additions to the Melee group while Snake is moved to just before Sonic (I assume it is because third party characters are listed last). The only unusual thing about page 3 is that Jigglypuff was not moved to the SSB group. It seems that Mr. Game & Watch and Marth were probably the first removed characters to be added back and Jigglypuff was added much later with the other last-minute clones like Toon Link and Wolf. It seems that the most of the Forbidden Seven were most likely the last-minute additions Sakurai planned to add back in Brawl to make the roster bigger but dropped them in favor of Sonic.
I think Sakurai would rather remove the clones and outdated characters first in favor of new characters with more unique movesets or replacement characters with similar yet different movesets. I also think Sakurai would add back the removed characters and add more clones only when he needs to make the roster bigger in the last minute.
I think the following characters were originally removed from Brawl and were added back later to make the roster bigger.
Marth (along with Roy) in favor of Ike
Jigglypuff (along with Mewtwo and Pichu) in favor of Pokemon Trainer and Lucario
Ness in favor of Lucas
Mr. Game & Watch in favor of R.O.B.
Young Link updated into Toon Link
I am starting to think that these characters along with the Forbidden Seven are now considered as back-up additions to make the roster bigger in case Sakurai needs to do so on a short notice. I think Lucario, Ike, Wolf, and Toon Link could now be considered back-up additions for SSB4. If Sakurai couldn't come up with a moveset for a new Fire Emblem character, he could just fall back on Ike or Roy (at least Marth is safe since he has two remakes on the DS now). If he couldn't come up with a moveset for Krystal, he could just fall back on Wolf or worse, make her into another Fox clone with her own Landmaster. If he couldn't come up with a moveset for Tingle or a new Zelda character, he could just fall back on Toon Link or worse, add Toon Zelda and Toon Sheik and we would have four Light Arrow Final Smashes!
Additionally, if Sakurai couldn't come up with a moveset for Toad or Bowser Jr., he could just make Bowser Jr. into a Bowser clone or just add Dr. Mario back. If Sakurai doesn't have enough time to add two or three brand-new Pokemon after adding Zoroark such as Meowth and 2nd gen or 5th gen starters, he could just fall back on Mewtwo, Lucario, Jigglypuff, Pichu, and the 1st gen starters.