Currently the only way to see what rewards are given per mission is when your first assigned that mission, or if it is alredy in your inventory to drop the mission and either hail the correct officer to get the missoin back or visit the npc that gave you the mission in the first place.
There is a thred in here asking for the quest rewards to visable in the mission info page.
As this is the feedback board I guess it's not a bad thing repeating something someone else wrote as long as it's my opinion.
@topic: Yes, I certainly can not imagine a reason for hiding quest rewards after accepting the quest. If the intention was some imersion thing then the rewards would not be shown when accepting quests.