It depends what form the C&P changes take - if a persistent offender were to be chased out of the system by ATR (or worse) every time they entered then it'd be a bit more inconvenient for them, unlike an ignorable increasing bounty.
Ok. Work this through. I'll need your help here as I am already in Open.
How does a CMDR get a bounty in this instance?
By popping a CMDR.
Subsequently after X or so are popped then they are chased out (leaving aside the mechanics of that for the moment).
The main complaint it appears from CMDRs who don't already play in open is asymmetric combat they can't deal with.
Even in this scenario, that CMDR ends up popped. There's no difference for them.
That is why a C&P rework won't attract more PvE players to Open (IMHO) because the main complaint of Open still exists.
Granted, those CMDRs who already play in Open might feel a little better and be more sanguine about their loss, but they would have felt that anyway.