i agreeUchiha clan had no official plan. All they did was gather information and had mad meetings. It all the 3rd hokage and danzo fault for not giving them the benefit of the doubt for the 4th hokage death. It the 2nd hokage fault for not allowing them to have any political power. Just kept them out of government affair. You can't say judge a uchiha clan base off of Madara(Who lost all 4 brothers and his clan turned their back on him). That is like saying if one person from a clan rape a girl, that person's clan might rape a girl too. That is totally wrong.
The uchiha clan had no choice anyway. it either live the rest of their life as a second rate citizen or fight for their freedom. If they had left the village, Danzo wouldn't leave them alone. Other village would've see that hidden leaf village had gotten weaken and attack. So there was no win chance for the uchiha clan unless the 3rd hokage and danzo was willing to change!
So when once everybody learn about this and if they don't feel guilty or welcome sasuke back with open arms, Sasuke have every right to not come back to that village.
look at the ninja the clan produced...imagine if they joined or created a village lol