2x new Su-35edit :
x2 Su-30SM2 (another 2 not yet finished in the photo)
x3 batch of' Su-34M (presumably 4 or less per batch)
x2 Tu-160M almost finished (1 actually finished but not yet delivered, another one must have been finished already by now)
If the VKS could improve on its combat survivability even more, technically their air force could grow, at least when it comes to the higher end of combat jets.
This is one way they could increase survivability