rservice wrote on Jan 13^th, 2014 at 1:30am:

The problem with Russian aircraft is that to be authentic, they would have to use cyrillic characters on the panels. I doubt that most users would have the patience to learn this and also what kind of market quantity could they sell. :( :( Ron

When you consider that the L-39 Jet Trainer, Legendary MiG 21 and Yakovlev Yak-3, Russian aircraft, were early works of Captain Sim, they have not done any more. So maybe they already know that the market for Russian aircraft isn't as large as for the more common western aircraft.
Just sayin'. That doesn't mean that they won't do another one.