It's true he doesn't fit in a niche; I believe the company thinks his character is so well established and his presence so necessary that he can be placed anywhere and come up shining. Of course, they might be right. Plainly, he doesn't want to be a full-time active wrestler.....he wants to pick his spots and fill in when some star presence is needed to give another big-time player a big-time opponent. It's been done before.
Two exceptions: Usually, the guy who fills in as Trips is looking to do, is a jobber, not a star.....and Triple H sure doesn't feature as a jobber. Second, Trips doesn't lose, with the exception of last year's Wrestlemania. You would figure if the company is looking to provide a major vehicle for a big presence (Kevin Nash, C.M. Punk), you would expect that star to win the match. If you're in the ring with Paul Levesque, though, you had better be prepared to come up on the short end, no matter how big you may be in your own right.
I don't know; maybe Creative has a long term plan for Trips. I've always been a big fan of his, but I admit I don't care for the idea of his coming in and beating everyone.....not if he plans only to wrestle on an occasional basis.
But then, Triple H is the 800-pound gorilla who can sit wherever he wants.