I have this feeling that any planes coming up will seriously take a while, not to be pessimistic but at the way i see it now, i don't see why the rate at which new planes come out would become faster because DCS 2.0 is out, so basically since the Mirage 2000 took it's time to come out, imagine having to wait the same amount of time for another plane who might not be of your interest, saddening unfortunately :/
Even though i really appreciate the work of Razbam and the rest for taking time to make such good modules !
But to actually speculate on what's next, i would really hope to see the F-16, that's for sure !