Hi HormazdDastur - welcome to Flyertalk!

I don't actually think that getting to PE is all that easy at all, and my guess is that most of us are PEs only because we were Royal Wing under the old scheme which was a lot more generous when it came to qualification levels (but a lot less generous when it came to earning rewards).

Under the old scheme you needed 24,000 points to reach Royal Wing (the top tier of three), and minimum points per sector was 350, with one-class Cityhopper routes earning Business Class points for everyone. NWI-AMS (my local route) was worth 700 points, EDI-AMS earned a whopping 1200 - so 20 return trips would get you to RW. Also, the old scheme allowed you to carry forward surplus points to the next year - so if you had 30,000 at the end of the year you started the new year with 6,000. And finally (and this is relevant in your particular case) every member had his own membership year which started on the day of enrolment or on the day they moved up a level - points were reset at the end of the membership year, not at the end of the calendar year.

When KLM changed to the new system all RWs became PEs, and those who had carried-forward points in their accounts were given one extra year for every multiple of 24,000. Rumour has it that some people here are PE until something like 2020 and will remain PE without having to take one single flight on KLM.

My carried-forward PE status ends at the end of this year, and I don't think I'll be PE next year because earning PE is so much more difficult than it was to earn RW.

There are, of yours, ways of actually earning PE - though I don't know if any of them would be feasible for you:

1) Doing LOTS of long-haul flights

2) Being a weekly commuter on a short-haul route (you'd make it easily if the commute involves two sectors in each direction, e.g., A to B via AMS)

3) Doing mileage runs - i.e., travelling for the purpose of earning miles and choosing itineraries that maximise miles. Earlier this year someone reportedly flew between two places in the USA using a zig-zag routeing that involved about half a dozen changes of plane

Sorry I can't help more!