You know, the original post wasn't phrased very well. And HTC should certainly NOT stop filling gaps in the historical plane set.
That said, I think there is small amount of truth to the idea that adding exciting very late war and even "What-if'ish" planes to MA could have positive results as far as attracting customers goes. That's just the nature of the market. And having more planes to spend perks on would be good. So if HTC finds the time to model the P-51H, F8F, F7F, P-80, Meteor, Sea Fury, He-162, Ta-183, etc, bring 'em on I say. Maybe even put in a special "1946" arena for them.