4. Chespin or other Pokémon depending on Ash's Kalos starters.
5. Other Pokémon
6. Other Pokémon
7. Other Pokémon or late Pokémon, such as Gible.
Froakie : I think Froakie suits the best. I can see him with Fennekin or Chespin, but Froakie looks greater. I have a good feeling that this one could break the curse on the unevolved Water type starters and Froakie reminds me a little bit of Buizel. And when I see how good Buizel was with Ash, I think it would be neat.
Fletchling : As usual, Ash will probably catch the regional bird but I'm quite good with it because I love Fletchling. I think this addition to Ash's team would make the show even better, and hopefully better than how Unfezant was poorly treated.
Chespin : Ash always got the Grass type starter and I'm still trying to figure out if it will continue that way... I'm okay with Ash getting Chespin but I would also like to see Ash with only one starter, like he did in Hoenn, so he can concentrate on this one. I was upset how Snivy was left in the dark and I wouldn't like to see that happening to Chespin. However, I do see Chespin with Ash as long as he treats it as well as Treecko.
The reason why I didn't put Fennekin in that is because I would rather see it as the rival's Pokémon or even as the new main female protagonist's Pokémon. Not because Fennekin is feminine or looks fabulous (of course she does!), but because I can't see Fennekin being developed well with Ash. I just... would prefer to see Fennekin somewhere else in the main cast. Not with Ash.
As for the other Pokémon, I can't judge. I just put what was logical. There are too many new Pokémon we haven't seen yet. I can't see how people can build a solid team without knowing all of them.