Hm...maybe you should go to Bulbapedia and see the Johto Dex.
lol. I should, or go to my emerald version where I completed the dex(... with an AR...)
If they do remake G/S/C(well, maybe not C cause it's a remake, but it'd be nice) I hope they include Kanto, but have an exceptionnaly well done Johto. Having a battle frontier would be nice, but they could include that in the Sevii islands, so as to not disturb Johto, but add on to FR/LG. And Mt Silver returning would be a must.
I think my team in a Johto version would be: (brackets contain pkmn that were added after G/S/C were released, but were evolutions of GSC pkmn)
Feraligatr
Murkrow(Honchcrow)
Ursaring
Tyranitar
Magmar(Magmortar)
Electabuzz(Electivire)
...turned out a lot like my current team, sadly... Maybe I'm just not original, or I've forgotten about a lot of the GSC pkmn...
To avoid repetition of types, you can replace Murkrow with Misdreavus, and evolve it into a Mismagius (65/65/65/105/105/105 I think) (BTW, the stats are in HP/Atck/Def/SpA/SpD/Spe order).
And replace Ursaring with Furret since Furret has better Speed XD </JK> Furret's a fairly weak Pokemon.
Anyways, to replace Ursaring is Gligar, which can evolve into Gliscor (75/95/125/45/75/95). Better typing despite 4x weakness to Ice, and if it has Sand Veil, you can use Tyranitar's Sand Stream ability to activate Sand Veil. It also acts as a Defensive Wall.
You might consider trading Magmortar for Scizor (70/130/100/55/80/65), since you really can't find many opportunities to use Fire attacks.
These are just my recommendations to remove your team from common weaknesses, particularly Ground.
...I forgot about Scisor, even though I just EV trained a scisor in Plat which is now lv 93...
Okay, so: Feraligatr, Gliscor, Tyranitar, Scizor, Electivire and Mismagius/Ursaring/Skarmory <-(forgot about that one... resistant to 2 types, and has steel type. Great wall.)
