These are all nice ideas, I guess. Knowing that it's all just hot air is a little distressing, since it means that meaningful changes to the current, highly flawed system is still a significant distance out, tempers my enthusiasm. Alas.
Anyway, none of the proposed ideas would make me more engaged about powerplay, mostly because as far as I'm concerned, the powers don't have very much to offer me. The maximum weekly salary I can earn for myself, after a relentless grind, is $5mil a week. I can make that in a day of focused play. And I only unlock that $5mil if I grind my face off, and then continue grinding my face off (to no immediate reward during the process).
If I spend, say, one night out of the maybe three or four I play, I'll get DIDDLY SQUAT, which seems like a stupendous waste of my time and effort. The only reason I pledged was for the bounty % benefit and even that seems a little regrettable considering how often I get interdicted (by idiot NPC vipers pulling over my combat-geared Python, whom I then easily destroy to no benefit for myself).
Hey, Frontier: if your game is going to pull me into "random encounters", reward me for participating in them. I don't get warm fuzzies blasting soulless NPC robots to stardust. I do that all the time anyway, but when its on my terms it rewards me. What you're forcing me into is annoying busywork.
Here's an idea: Yank powerplay out of the game completely and maybe bring it back when it isn't a horrible pile of broken and half-baked game ideas. I'm sorry guys, I like the game, but holy hell.