The life of a Ki User

Epilogue 3 is done for The Death of Bloodlust 2: Arcueid's Grail War. Kieran's gotten it for pre-reading. After that, I'll move on to the last few, then I'm done.

On a different note, after Precursor Fate/Lunar's done, what would you guys like to see me write? Attempts at comedy? Or what?
Currently, I've got two fanfic ideas running around in the back of my head.

The comedy idea involves Shirou Emiya's attempts to become a superhero, involving him attempting to apply for jobs in other genres.

The more serious idea was Shirou Emiya learning what it's actually like to reincarnate, due to a screw up with a mystic artifact. So he wakes up in mid-life, as a voice in the back of his current incarnation's head and/or waking up as a baby for that life.

Any ideas of which I should go for?