I keep starting to comment on this and then scrapping what I've written. I think I really wanted this to be a somewhat different game. The only two ideas that might actually fit your current game are:
I wished that the spacebar would auto-re-route the power the way W/A/D do for the engines.
And that there were much fewer (probably bigger) rocks and no fast-moving ones. With the wrapping, it doesn't take much (at least for me) to overwhelm my ability to keep track of where they will be next. My brother's fancy Asteroids clone starts with only three "rocks" and new players still usually die a lot. And the power re-routing delay means that you can't react quickly to anything, so you have to plan ahead even more than usual in an Asteroids game.
Nice concept, though! Just a little too hard for me in its current form.