The is nothing else to really do. The seven sages were basically the final mission.
i have been on several official cites looking for this including Pokemon wiki and serebii they list how to find the seven sages but not ghetesis so i think you cant sorry
After you have Looker arrest the last sage out of the Seven Sages, He should thank you and he should also tell about a boy who sounds exactly like N, who has been seen with a dragon pokemon somewhere far away... ^_^
route 18
Well you defeat alder and he will register your pokemon on the hall of fame. After that you have to find all seven sages including ghetsis.
after you catch the six savage pokemon you have to find all seven sages
yes you have to find all of the seven to catch rayquaza in pokemon white
You can no longer battle or talk to "N"
catch "em all
Not too much, go to White Forrest, catch all the pokemon. There is not any other story lines that I'm aware of
Just enjoy Pokemon black and white! catch your favorite Pokemon, do global trades/battles or battle your friends! Have fun!
You don't.
No where. He just went of.
Nothing that's it
Continue your journey :]
you don't
You are banned from the institution of marriage for life.