Just some ideas for what gray version will probably have:
-Anything that was on the eastern side of Unova will be accessible earlier in the game
-The regional pokedex will be expanded like platinum's was
-A Battle Frontier
-You can actually battle the sages and the shadow triad
-Gym leaders, Ghetsis, and the elite four sprites, animated
-hopefully, they will bring back OW pokemon following your charactrer, I loved that feature in HG/SS and I honestly wished it came back.
-The old rod and good rod (Or whatever the second one is), they existed in B/W's data so I don't see why those two things can't be brought back.
Not all of this is bound to happen but to be honest with you they seem realistic enough. (E:this and some of the things mentioned above in chaos rush's post.)
-Anything that was on the eastern side of Unova will be accessible earlier in the game
-The regional pokedex will be expanded like platinum's was
-A Battle Frontier
-You can actually battle the sages and the shadow triad
-Gym leaders, Ghetsis, and the elite four sprites, animated
-hopefully, they will bring back OW pokemon following your charactrer, I loved that feature in HG/SS and I honestly wished it came back.
-The old rod and good rod (Or whatever the second one is), they existed in B/W's data so I don't see why those two things can't be brought back.
Not all of this is bound to happen but to be honest with you they seem realistic enough. (E:this and some of the things mentioned above in chaos rush's post.)