I added a new mission just to find the new cult hideout, check first minutes of this video:
At goldenrod underground as Trapinch, for sale at about 1,200 coins, coin case is in this underground too, talking with a super nerd.
I removed it because you just can use vitamins until 250 EVs, so this method is faster and less expensive than original games (3000 per vitamin).
At the end of pokemon tower mission there are level 30 candies for sale, at a new place. In the Kanto arc level 15, 30, 45 and 65 candies are for sale, before the pkmn league.
With route trainers and bosses you should be at good level, even a bit more leveled if you do sidequests.
One of them yes, but not in this Johto release.
Not for the moment, and not in near future, because I have a lot of plans to expand the history, and doing a female character would demand tons of time because of all the sprites, backsprites and minis for 6 different rocket ranks.
I'll have to change a lot of dialogues refering to you as a male character, and there is still the possibility of Andra being this female character...