My understanding is that HT is going to change the FM on the 190's very soon. They will also get a face lift.
If we can get maneuvering flaps on the 190's, and this is somewhat contentious, the 190's may become a more popular ride.
And if they set the A8 so that it can outturn a A5, as my understanding the real A8 outturned the A5, and the Dora outturned the A8.
So we can just hope that the 190s get tuned up soon.
But from my limited readings of WW2 (I'm a WW1 buff) the late war Allied planes were in fact very good. And in a MA where all planes are available most people will gravitate to the better plane sets. The Pony D, Spit 9, NIKI and LA7 are prime expamples, and more people fly the Dora than the 190A8 even though the Dora has only a slight edge on K/D over the A8.
Here is an example, since you can no longer sucker a Pony or a LA7 into a turn fight with your 109F4, because he thinks it's a G10, why fly the Frank?
Late model rides will be more popular, and the late war allied planes are excellent.
The 190 A5 had much less wingloading the the A8 aswell as the D9 thus the A5 turned better then both. The A8 was much designed as a bomber killer and was more heavily armed and overall heavier. More or less the same airframe otherwise and the same wing area = heigher wingloading = worse turn rate.
The dora is a couple of hundred kilos heavier then the A8 (both being empty) and it's got the same wing area which would result in a slightly worse turn rate. Of course, the Dora is by far the better fighter when it comes to all fights, including turnfights thanks to engine power and the more smooth lines of the plane.
Not sure where you have heard the A8 will outturn the A5 and the Dora oututrn both of them, but it's wrong.
As for maneuvering flaps, non of the 190's (according to the manual) we capable of having the flaps extended in speed of 350Km/h or above (about 218mph). This is about 40-50mph heigher then what can currently be used in AH (unless it has been changed since I flew last time). It doesn't say what speeds the flaps can be deployed at though.
As for the 190's getting tuned up, don't get your hopes up. As to my undertstaning Pyro has said he will remodell them after LW charts (if I remember correct). This doesn't mean they will be improved though, just different. Much depends on what charts will be used but Pyro said that many of the charts he's got show the planes inferior (or atleast worse) then what we have now.
Before I had to take a paus from AH, shortly after 2.0 was released, I found the 190's to be quite different from AH 1.x. Infact, for the first time in AH I felt they were real competative planes, closer to what many 190 pilots said they were.