May I disagree there?
One cannot put on the same perspective a mature model like the Su-34, already in service in more than an hundred of plane with a prototype that have performed its first flight just few days ago.
Even postulating a tighter development schedule for the S-70 compared to a normal plane (as the need to enforce security of pilot is not just existent here) there would need a lot of time before serial production of the final product would be possible.
Above all, however its the same idea of developing not just one but two different platform (given that SKAT has been revamped also) to cover just the production of 80 items just doesn't make sense to me.
Maybe the substitution of Su-24MR with Okhotnik could happen anyway but together with the one of complete Su-25 fleet as a minimum.
I would be even more ambitious and stretch the performances of it into reaching the 1.5-1.7 M ballpark: a 5 gen Su-22 available in big numbers (as you didn't need active and physically fit pilots for them) to put F-35 into big troubles.
Well, the Su-34 concept os a late cold war concept, but the older Su-34 was handed over in december of 2010 and the first complete regiment entered n combat duty by 2014
In addition, the current Su-34s are in bomber regiments, they will not be the Su-34s that will presumably receive the newly created composite regiments (SAP)
These squadrons for these new regiments will receive the new Su-34M or whatever they want to call the next version of the Su-34, so they will be totally new, with new equipment that will allows interacting with the S-70, which in fact will can interact with the entire range of Sukhois that are designed to work together.
About the S-70, welll, you know one are flying in Akhtubinsk range, but you dont know how many time the project os running.
In this stage, be sure S-70 started to walk some years ago.
Usually, when one airplane goes to Akhtubinsk , means the project is advanced, probably S-70 Project started many years ago.
Russians show only what they want to show, when they want to show
Today there are one S-70 testing on Akhtubinsk and there are zero Su-34M, so S-70 has a lot of time of advantage over Su-34M
The air force says when opened the first SAP regiment years ago, that Su-24M and Su-24MR will remain in service some more years instead withdraw them about 2020, so this means the replacement for both is still not ready.
The issue is not that the S-70 is the replacement for the Su-24MR, the issue is that the Su-24MR is obsolete and will be removed anyway.
In the West, airplanes for reconnaissance like the Phantom F-4RC withdrew in the 90s.
Then, the tasks that 24MR did, and new ones , will be performed by another aircraft, and a UAV seems more reasonable in the 21st century for that task and new tasks that were not previously contemplated
In addition, that the S-70 is stationed on the same base as the Su-34 does not presuppose anything, a regiment is an administrative unit.
The mixed regiments have squadronss of different nature, such as: fighters and bombers, bombers and reconnaissance, transportation and anti-submarine, airplanes and helicopters, etc ...
It is simply a regiment where two or more different squadrons meet for logistical reasons
S-70 doest not need supersonic speed. U-2 only had 0,75M.
Being able to overcome the sound barrier does not mean that it need to do it or that it will do it