I don't think Ludicolo would be out of the question either. Lombre evolves a 14 and then all he would need is a Water Stone so Ludicolo would probably be around the mid 20s. Not out of the question since last gen Gardenia had a Roserade and that was at Gym 2. And that was quite the powerful pokemon imo. Then following that Maylene had a Lucario. So with all that I think Ludicolo would be perfectly find pending he is indeed third in line.Yeah Ludicolo certainly doesn't seem that tough, it's just... it doesn't seem like something found early on. On the other hand, Lotad wouldn't really be appropriate but Lombre does seem like a good middle ground.
Kind of doubt Shizui is the last gym. If anything I get the feeling it will be Iris. Old guy is Pryce. And the person you called Skyla Skyla is Winona. I have a strong feeling the Burgh may go to Nacrene but position won't be flipped backwards imo.Considering how it's usually the last gym (well RSE had two:Norman and Wallace/Juan) it'll proably be him or her who is restricted. Though come to think about it Unova in BW was quite restricted compared to HgSs. I'm hoping this time around it's not.
If Shizui is the last gym than he'll have a similar position as Wallace/ Juan which if you look at Unova a lot of the gym leaders have positions from previous regions, like Brycen to both Candice and the old guy from Johto. Then there's Skyla who is sixth like Skyla. Also if you switch around Burgh and Lenora's orders you get them to match Bugsy and Witney...seriously GF needs to add dark to add some variety to these gyms.
Only thing with N is that he is missing. Being a gym leader I don't see how he could be missing if he is the head of a gym. N can still play an important role without being a gym leader. He can be like the Lance and Steven on generations past and assist you against the Plasma factions. Which would lead him to still another pivotal role.So Homika is second we're now figuring out the order, so far I've got:
Cheren
Homika
Shizui
Elesa
(New Leader)
Skyla or a replacement.
Brycen
N or Iris.
My reason for N being a Gym leader is because he played such an important role in Black & White, to just send him off without any relation to B2W2 would be awful. The reason why I think he'd be a gym leader is because I don't see him playing the same role in Team Plasma as he did in BW but more of a changed person after the realisation of his mistakes, I meaan it is 2 years later so anything can happen over that period of time.