You’re right. So...the new thing about the T-14 is the gas turbine engine (along with improved fire controls)?
Used to be that new Russian hardware was revealed in the May Day parade in Moscow.
Tsar Putin brought the May Day parades in Red Square back too
They might show some prototypes on the parade, but the tank as described would be prohibitively expensive to go for mass production. And, consider the extra cost to make it idiot-proof - a must for Russians. Overall, I think it’s just a hype to intimidate us. Russian saying: don’t try to scare a porcupine with your bare bottom :)