Add reset to Story/Prologue missions

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Curious if there has been any discussion to somehow "reset" the story/prologue missions after someone fully completes them (100% missions and rewards) and maybe raise the level cap on the missions to allow further replay?

I ask as I have many characters that are too low a level for PvP (from 1* - 3*) and I would enjoy to test them out via Story while earning new rewards. Can this be something that is reset after the 100% completion or after a certain amount of time?

Just trying to get more play out of less-used characters due to level and diversify game play options.

If this has already been discussed elsewhere on forums, forgive me. Just a thought.