All the Zimbabweans I've spoken to in the last few days have been positive/hopeful in general. It seems that it is less a coup against Mugabe than his wife Grace and her G40 faction - this could better be considered an internal power struggle within the ruling party. Furthermore, whatever happens it looks like Mugabe will be the one to "make the decision" - for better or for worse the man is unassaible in his individual capacity.
Situation on the ground seems calm but probably very tense. As to whether things will be better, I think the best outcome will be had if fresh elections are called soon. Will have to wait and see.