You said ....'FD has the numbers, once the participants between Open and Solo are roughly close to one another or are appropriate to the threshold FD is comfortable with, that will be it. Plus, it's PP only.' in your post. That says the decision is based on numbers in open, not some parity between the modes.
Once again, do you read what you type at all?
I said it before, just a few posts up, and posted it in another thread Ziggy has, but this move to get people to play in Open is a dumbass incentive since it's pointless.
What is the bonus for doing PP in Open? The POWER gets more power points. What does this give the player? Exactly what they get right now, there is no change for the PLAYER at all, merits are still earned in exactly the same manner, amount and fashion. No credit rewards either, no toys as a reward, nothing but the Power getting more points, which leads to exactly what happens right now without that bonus to their power in the first place.
How do you collect this bonus? Playing in Open. What are the repercussions of playing in Open? The only chance of facing actual player opposition to your Power. Currently, that chance is a variable depending on which Power you pledge to and what systems you go to, but it's generally not very high. With this bonus being added, your odds of facing actual Player opposition increase by an unknown factor, but you can bet your sweet Aunt Agony's petunia's that it WILL increase dramatically for those Powers who currently field aggressive and trained PvP groups, of which some few do exist. So being in Open will be a rather dangerous proposition, and a bonus you can't collect on is an absolutely useless bonus. When said bonus actually gains you NO real reward in the first place, there's little incentive to switch to Open to try and get that bonus.
That is a dumbass incentive, because it's NOT an incentive, it's a fix to a real and present imbalance in the modes in regards to PP, that's all it is. SOME people will be inclined to stay in Open when doing PP instead of switching to Solo/Group, but only some. This fix will only be effective if ENOUGH people are in Open to take advantage of the bonus, which is something only FD can determine based on the metrics they get. Based on the metrics they have now, there's less people doing PP in Open than there are in Solo/Group, due to the ease of doing PP in those modes over Open, which is why the imbalance exists in the first place.
And that's why I argue against the fallacies that keep being presented about this idea but am against the idea myself, it's not an actual fix, it relies too much on people making a counter-intuitive choice that has no actual reward for them and instead offers much higher punishment odds. NOT something I see this community et al doing.