Hmmm. Honestly, I don't want to wait for three more years to get the core characters from POP and NA... but it seems that 90% of the fandom are fine with it. Why? Because the current flow of NEW figures is preferred over other potential strategies.
Unfortunately, unless Mattel starts putting out new characters as bonus figures we will never see many of these cameo favorites of ours. That's not to say all of them (we got the Goddess, for example), but POP fans may never see the Star Sisters, Sweet Bee, Peekablue, etc. NA fans may never see most of the Galactic heroes, and many of the unique bad guys.
The current ratio, when looked at in perspective, is actually very nice...
12 New Character Figures
4 A-Lister Variants
1 SDCC Exclusive (hopefully sold on Matty afterward, like He-Ro)
... So, I shouldn't complain too much. But changing the ratio of representation could conceivably be a risky move when we are looking at only 12 monthly figures.
The best hope for more representation of anything not 1982-1987 MOTU is in the exclusives and bonuses. When you consider how many slots there are annually, you will realize that POP and NA (not to mention 200X) will have to continue trickling in.
I hope I'm wrong.