So are all these just some models in the computer or what?
Because I cant see how Russia could afford so many programs at the same time
It depends. I personally think they're aimed at India (more specifically - at TEDBF).
With potential paying customer (if one appears), and leveraging equipment already developed - why not? Especially since they didn't bring it out from nowhere - they have both deck fighter experience (2 generations of one) and developed aerodynamics(new model is clearly related to the 1.44)
Proposing a reasonable hedge to Indian Navy in case their own project(first ever of this kind) fails is a reasonable option. Not very likely to happen - but there is a small but reasonable potential market for this plane.
That's almost as ridiculous as saying upgraded F/A-18E Super Hornet Block II's can defeat 5th gen J-35's.
In a reasonable situation - yes, they can?
Hope I haven't offended any church of generational religion by saying this.