I gotta say, it's a good idea to start afresh.
I know it's difficult to come up with ideas. I'm creating an animated series that took me over 5 years to plan out. Just the storyline and characters alone.
Well, my point is, don't try to come up with an idea too fast. Just take your time, I think you could make some good games.
But it's a good idea to ask for the opinions on other peoples too! Honestly, I think a lot of gamers prefer deep storyline rpg games over endliess killing/etc.
I'll be sure to check out your new project!
~HxS~